Why is my BMW burning so much oil?

The answer is low friction, read narrow and thin oil rings with miniature holes-slots on the ring are the answer.

Traditionally the lower oil rings were responsible to bleed and scrape off the excessive oil which in turn got returned to the oil sump. The worst is the twin turbo V8 engine code named N63 with all the thermal load coming at it from the turbo chargers between the two banks.

The motor oil goes thru a significant heat stress, furthermore carbon build up made worst by the extended oil change intervals and lighter weight oil all contribute to the oil rings not being able to do their jobs properly.

BMW piston

As they say a picture is worth a thousand words, if you look at closely the piston’s picture above, you will see the miniature horizontal slots are closed, clogged up shut so the oil will be drawn up into the combustion chamber and burned off in the combustion process.

It’s worth to note the valve seals are also marginal in this particular engine again due to thermal overload, the seals get baked to rock hard and the oil gets sucked in thru the cavitation of the components. The only viable cure is frequent oil changes. We recommend 5/40 grade motor oils and the occasional oil flush also recommended to reduce the carbon build up at crucial places.

We use LM professional oil flush to clean the engine, (engine flush) which is made and tested in Germany, in extreme cases the LM motor oil saver can be used temporarily to soften up the hardened valve seals as a cost effective alternative to major engine repair.

If you have any further questions we will be happy to answer them in person .

Thank you for reading and all the best from Techmax.

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Our Winter Driving Tips

Winter might be taking a nap, but that doesn’t mean it isn’t going to come. It’s coming whether we like it or not! Winter is the toughest season you and your car can face. We can prepare your vehicle for the ice, snow and freezing temperatures.

Winter Tires

All four wheels need them regardless of whether it’s a front-wheel, rear-wheel, all-wheel, or four-wheel-drive. All-season tires are not winter tires. Winter tires reduce the number of collisions by almost 20 per cent. Enough said.

Winter or summer, your car tires are the only point of contact that your vehicle has with the road, they need to be in good condition at all times to ensure your safety. Inspect your tires regularly for wear and any damage to avoid any sudden problems. Check your tire pressure monthly and before every long trip.

Driving with incorrect tire pressure can affect your car’s handling and braking, particularly in wet conditions, and can seriously compromise your safety. Driving on severely under inflated tires can cause heat build up and eventually a premature tire failure. Read more about winter tires…

Brake

You car brake system should be in top working condition at all times. Have your brakes checked by a professional regularly? Your and others life depend on it.  At winter time is more important than ever, in the case of slippery conditions like icy snow covered roads, the effectiveness of your traction control and ABS system depends on the quality of your braking system. Have it inspected and tested by a professional for ultimate safety in any weather and or road conditions. Bring your car in  for ABS and brake system service.

Battery Test

If your car is five years old or older have your battery tested for strength and performance to prevent possible no start condition in foul weather. It might not necessarily need a new battery, but having it tested can save a lot of headache.  To prevent breakdown and keep you on the road safely, we use Midtronincs GR8-1200 Electrical System Tester – Analyzer to check, test your battery and your automobile electrical system. Read more about battery testing…

Fluids

While the use of long-life engine coolant has increased, it still should be checked for strength and condition every fall.

Washer fluid level is an easy check and a spare bottle should be in your trunk all year long and especially in the winter.

The engine oil in your car has to go thru temperature extremes. Therefore it’s very important to have your engines lifeline the engine oil up to the highest possible standards, by performing your oil service on time, especially on today’s modern high tech engines, during winter operation thanks to fuel contamination from cold starts and water contamination from condensation. If you getting close to oil change, start off the season right with a fresh oil and filter change. While we perform your oil change we also check your brakes, tires and most fluid levels for your added safety.

Our Cooling System Service

Oil – Lube – Filter – Service

Wiper Blades

Windshield wipers consumable items. Doesn’t matter what brand name they are, they due for replacement at around 18 months of use or sooner. Most wiper blades can freeze, even dedicated winter wiper blades can get stuck to the windshield in extreme conditions.

When we inspect your car’s wiper blade, we lubricate the hinges to prevent water and ice formation at the base.

Locks & Doors

Before the Canadian deep freeze hits, we lubricate door locks, latches, and hinges and treat the door and window seals. We use silicone lubricating compound (Made in Germany). By spraying the door and window weather seals, they will be less likely to freeze you out on a cold winter morning.

Floor Mats

Never stack floor mats on top of one another or use a mat that’s too thick. The risk of jamming your accelerator pedal to the floor is real and the results can be catastrophic. Winter floor mats are great for reducing salt stains on the carpeting.

You should remove mats from time to time throughout the winter to dry them out indoors. Moisture on floor mats is the cause of hard frost appearing on the inside of windshields and door glasses.

Full  Tank of Gas

Drive with full tank of gas at winter is a good idea. Never know when you stuck in the snow, so you can keep your car and yourself warm if you have enough gas in your gas tank.

Some people put something heavy, like a 50 kg concrete block in their car’s trunk to get better traction, but if you get in a collision, consider the damage a 50 kg piece of concrete will do. The best weight to carry to improve traction is fuel in the gas tank. This brings the mass lower to the ground for improved stability and reduces the effect of winter water contamination in the tank.

But if you still want to put something heavy in your car trunk put there a bag of Kitty litter? Yes, kitty litter!

It can help provide better traction for rear wheel drive vehicles, because of the weight, and if you get stuck in the snow a little bit of kitty litter sprinkled under the tires can help you get traction and out of the snow.

We wish you happy winter driving!

Don’t hesitate to contact us. Our phone number is:  905.795.0419

 

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Winter Service

 

German Import Cars Tune-up

Does your BMW, Mercedes Benz or Porsche needs a Tune-up?

In the old days cars had carburetors,  condensers, distributors, distributor caps with rotors, etc.. Than we had to adjust ignition timing and valves. All of this was checked, (and a lot of more) adjusted, spark plugs changed via tune-up.

What about tune-up on today’s modern vehicle?

Most car owners talk about tune-up when they run into some kind of drive ability problem. The vehicle may be hard to start, has poor fuel economy or hesitates at will under acceleration.

Then they decide to see their technician (mechanic) to resolve the issue. Does it sound familiar?

Does your BMW, Porsche or Mercedes really need tune-up?

Let me  say few things about tune-ups before I say yes or no.

German built cars controlled by computers, monitored by sensors since late 1980s. Ignition timing is controlled and adjusted by the engine computer, as the idle speed and the fuel – air mixture. Computers make sure, the idle speed is right  and various emission controls functioning properly.

The computers “tune” the engines until the yellow “check engine” light comes on, and you are wondering;  What just happened?

Please let me tell you on late model direct injection engines from the leading manufacturers may require special procedures to be performed in order to optimize the combustion process. Replacing spark plugs used to be a simple task, not any more.

If you don’t install the proper plugs or have them installed improperly, at best will result in engine misfire, at worst may burn a hole into the piston assembly, rendering the engine destroyed in the process.

Improper air filter may destroy your air mass meter or a poor quality oil filter may destroy your engine, since many of this cars have variable map controlled oil pressure system which reduces the oil pressure at lower engine speed to conserve energy by reducing pumping losses.

Modern engines from top manufacturers are extremely sensitive to Improper parts, components fluids and the like. Modern engines  very precisely made efficient wonders of engineering where every part has been optimized for efficiency and performance.

To answer the question; “Does your European luxury vehicle need a tune-up“? My answer is no, it does not need tune-up if we define the word tune-up on the old fashioned way, but if you want to keep your car in top working condition, it needs preventative maintenance.

Please protect your investment, get your car serviced by knowledgeable specialists whom are experts in the field of German light weight engineering marvels.

How may we help?!

Don’t hesitate to contact us. Our phone number is: 905.795.0419.

 

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Search Preventative Maintenance and Your Car

The Importance of Proper Battery in BMW Automobiles

The battery and  the alternator is the most important component in any car’s electrical system. The  alternator provides electricity and the battery store it to run all of your fancy electronics when the engine isn’t running. When the engine is running, it plays an essential role in the proper functioning of the alternator’s voltage regulator.

Bosch BatteryBosch Batteries

To have enough clean reliable power source in a modern high tech automobile is a understatement,  with nearly a hundred individual computers on multiple networks,  all cars need a healthy, well maintained  battery to put electrical components to work. Ambient temperature has a significant impact on battery life and performance. Slow cranking on startup indicates that the battery may not be able to provide enough power to fire up the engine.

No matter how well you take care of it, eventually your car’s battery will wear out and you’ll need a replacement. The majority of BMW automobiles past 2006 demand the replacement battery to be registered in the engine ECU.  In many cases the battery should be replaced with a revised version to improve reliability. Registration and proper specification in the DME is crucial due to selective charging, which is an important part of the efficient dynamics platform.

The latest trend is lithium ion battery in the newer performance models which requires additional special care and dedicated charging equipment.

The majority of car owners approximately 78 % waits until their vehicle doesn’t start which is rather inconvenient.

Wouldn’t you rather know when it’s time to replace the aged weak battery and have it done properly by a qualified specialist.

Techmax TeamThe Techmax team at the annual BMW training in Scottsdale.

How may we help? Give us a call  for more. Telephone: 905.795.0419.

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Midtronincs GR8-1200 Car Electrical System – Battery Tester, Analyzer

How to keep you car battery in top working condition.

Pre Winter Vehicle Maintenance

We are slowly drifting into fall which brings us closer to winter weather sooner or later.

This is the time to get our cars ready, possibly doing some standard maintenance like oil and filter change. It should be part of an annual maintenance strategy, clogged, saturated filters will effect, hinder engine performance and could cause hard start rough running at times and increased gas mileage as well.

engine analysis Computer aided engine analysis

Make sure the brakes are in great shape. Often overlooked the fact that the traction or stability control system uses the brakes to be able to bring a slipping sliding car under control.

The cooling system should be also inspected for proper freeze point and the quality of the coolant. The system should be also pressure tested to ensure reliable heating and cooling when required. The system pressure is 29.4 psi or 2 bar in most BMW, Mercedes Benz and Porsche automobiles. The cooling heating system level and performance is essential for proper operation especially in or before winter.

Does the heating system, thermostat works well? What about the condition of drive belts, clamps, and hoses? Are they ready for our Canadian winter?

battery testerBattery test’s print out at left.

The battery; Have your car battery checked lately? The battery should be also inspected and tested for reliable starting and idling.

Battery performance suffer with age and in cold temperatures, so system performance including the charging system should be checked out as well, by our state of the art starting- charging and battery system analyzer.

Our heavy duty charging and battery – electrical system tester analyzer also records the alternator performance for maximum reliability, with an actual system performance print out  as a proof of entire system test.

This complete electrical system performance test result essentially provides  a peace of mind in the winter.

The last but not list your car’s tires. New or fresh all season tires are a bare minimum for foul weather, winter tires are the perfect solution which should be the natural choice for this part of the world.

We are happy to help to get your BMW, Mercedes or Porsche prepared for the coming season and wish you safe motoring in the winter weather.

Call us for more details. Telephone: 905.795.0419.

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Battery  and electrical system service

Cooling system service

Which is better? Synthetic or conventional motor oil?

What makes a motor oil Synthetic motor oil? The word “synthetic” has a pretty loose definition, a lot of manufacturer prefer the word synthetic to only apply to oils chemically formulated without the use of petroleum as a base oil.

However it is not that simple. At first lets talk about petroleum based motor oils. Petroleum based or Conventional motor oil is a lubricant that is produced directly from crude oil.

Petroleum base motor oils are very “sensitive” to temperature changes. This means at extremely low temperatures, for example at winter  time, here in Canada it may be thick, and at high temperatures, it’s fairly thin. To change the oil properties, oil companies mix additives, chemicals into the petroleum base.

Those chemicals effects the oil  viscosity,  improve it at high and low  temperature too.  When a 5W-30 conventional motor oil is brand new, it  can acts exactly like a 5W-30 synthetic motor oil.

German Synthetic Motor OilGerman Synthetic Oil

The problem is comes with time, from the use, the chemical additives in the conventional oil begin to break-down and or vaporize. This means, the oil starts to get thick when cold and start to get thin when hot.

Synthetic oils work quite differently. From the start, the chemical structure is designed to match a specific multi-grade oil, plus certain additives like rust inhibitors or dispersants will be added to further improve the usefulness of the oil.

The end result is that over time the synthetic oil does not degrade as conventional oils do. From a viscosity standpoint, an old  synthetic oil act pretty similar to a new synthetic oil, however it might get slightly thicker as a result of contaminants.

Some people states it, from a viscosity standpoint alone, a conventional motor oil could match the protection of a synthetic motor oil simply by changing conventional oil  more often, and it is  true. However synthetic motor oils not just lubricate only, they come with superior quality additives, leading to a cleaner, smoother running engine as well.

Which one is right for your car? Which one is better? Synthetic or conventional motor oil?

Before any misunderstanding, probably hard to buy a bad lubricant these days. some of them good  and some others are better. Even the most basic conventional oils available on the market are far better than ones offered 10 years ago.

We believe, it’s ok to use a quality petroleum-based oil in an average car, but if you drive a luxury or a high performance vehicles, we recommend to follow the owner manual’s recommendations, which is synthetic oil.

For sure, the synthetic oil cost more, but the benefits of synthetic justify the expense, with longer oil changes intervals, reduced oil deposit formation, slightly better fuel economy and longer engine life.

Call us for more details. Telephone: 905.795.0419.

Related:

The Importance of Oil Changes

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Is your car AC blowing smelly hot air?

You car’s air condition system should be inspected every year. Even if you don’t suspect any problems, it’s a good idea to have that AC inspected, serviced and cleaned once a year, to make sure it operates efficiency and ready to cool your car in any hot summer day.

We, here at Techmax have three basic solution for your car air condition.

AC cleaner

The first is  for working but smelly AC.  LIQUI MOLY Climate Fresh will fix this problem. The spray is a deodorant for cars that every driver can use themselves. The self-emptying can is set in the foot-well and the air conditioner switched on. The  substances spread in the ventilation and free the air conditioner from unpleasant odors.

If this can’t  eliminate the odor, than we need to clean the AC.  We use LIQUI MOLY A/C System Cleaner.

This is also applied as a spray as well, except it not just to eliminate the odor, its clean the system also. This AC cleaner,  ensures that not only the lines, but also the evaporator of the air conditioner is cleaned.

AC cleaner

The third is the best method.

It is diagnose – clean –  repair and  re – charge.

The  cleaning will be done with  LIQUI MOLY professional AC cleaner. 

This cleaner made from two components, we mixed them just before use. The cleaning liquid is applied to the evaporator with a special tool and reliably eliminates bacteria and mold.

The above three methods – the simple Climate Fresh for eliminating unpleasant odors, the A/C System Cleaner spray can for quick cleaning and the 2K A/C System Cleaner for thorough cleaning – cover the entire spectrum.

Visit us and your  AC’s hot air and  bad odors from ventilation will become a thing of the past. Call us for further details. Telephone: 905.795.0419.

Professional AC cleaningDetailed Air Condition Service

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My car’s engine burns oil

Why do I need to top up my oil between oil changes?

It’s normal for cars to burn a little oil as they age. The most common  reason why  an engine loses oil internally, the oil is slipping past the piston rings.  All cars have it happen to some extent, especially when revving the engine at high RPMs.

This is usually older cars’ problem, where the piston rings are a little worn. It is not a big  problem unless it is excessive. But it can also happen on some newer cars.

There are many different reasons for more oil being consumed by modern engines, here goes the list.

Today’s modern combustion engine is a super slim, lightweight marvel of engineering. The internal moving parts has been reduced “optimized” for the lightest possible to reduce fuel consumption, including the pistons’ size. The rings has been also slimmed down with low ring tension. This minimize friction, which result in more oil to be able to escape and get burned in the internal combustion engine.

Worth to note; the stoichiometric ratio, relatively speaking is fixed, which is 14.7 kg of air with 1kg of fuel provides the cleanest most effective combustion. This particular ratio cannot be changed too far in either direction, or the combustion becomes inefficient in the long term.  This is why the engineers had to look for different solutions. This resulted in lighter more efficient internal components, including lighter weight motor oils.

Therefore  lighter weight motor oils are chosen to reduce internal friction with minimized pumping losses and being lighter also easier to burn.

Definition of is stoichiometric ratio;

Combustion engines’ stoichiometric ratio  (AFR) is the mass ratio of air to fuel present in a combustion process.

We could go further into the additional technical details, like running the crankcase ventilation under high vacuum to minimize reduce the pumping losses.

As you can see, there are multiple reasons for the oil consumption of a modern high tech internal combustion engine.

Last but not least the government legislated corporate fuel economy worldwide. This also having a serious effect on the design and manufacturing of today’s efficient internal combustion engines.

Thank you for reading. If you have any questions we are happy to answer them in person.

Wish you all the best from Techmax

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