Hi Guys,

I got a 2002 GTV with only 107000ks and I believe it has some Oil Consumption problem. Between the 10k services about two thirds of oil level magically disappears. Are these engines supposed to have this kinda "OILAHOLIC" problems like the previous gen magnas?

You mean it drops from full on the dipstick to one third above the bottom line?
Sounds about right for 10K services, but it depends on what oil you use, and if the engine leaks any.
Driving style has a big influence too, if you normally drive in the top of the rev range, any engine will use more oil.
Pull one of the front plugs out and look for normal colour, if OK you don't have a problem.

If it worries you check your oil more often and top up when down to half way on the dip stick.

Check the cam cover seals. Bet they are factory originals. The oil would be dripping down the exhausts.

How about advising how much in litres, or if this is the amount it drops on the stick

What oil is your mechanic using, what grade.

Are you doing a lot of short trips or generally longer trips

What time frame does it take to do the 10k

The amount of consumption i mentioned is based on what it shows on the dispstick.
The last couple of oil changes were done by the mechanic and i dont know which one he would've used but hopefully the one thats meant to last 10k.
I normally use this car for longer trips but occasional short trips too.
For the time i've owned this car is rougly about 17000k in last 2 years.
The cam seals were replaced at 100000k service.
There is no oil leak under the engine and nothing on my garage floor from the exhaust either.

One thing i know is wrong with the car is it may have messed up TPS and APS positions.. Possible cause maybe?

The dipstick is roughly one litre between max and min, so at most you are burning perhaps 650ml of oil in 10,000km. This is within normal limits and certainly a lot less than many other cars of this age. You don't have anything to worry about.

One reason it may be dropping in that time is the type and quality of the oil being used.

You mention you do a lot of long trips. Typically very long trips can burn a bit of oil above and beyond what is expected. This is normal and is due to constant high load and high temps. Also normal and nothing to worry about.

Find out what sort of oil is in the car, at best should at least be stated on your mechanics invoice

Cool.. thanks for everyones feedback and MORAL support :D

BTW.. Any specific brand of oil you guys recommend that may reduce the consumption a bit?

You've more than likely been getting a 10-40, so try a 20-50 if thats the case.

You've more than likely been getting a 10-40, so try a 20-50 if thats the case.

Wtf? 20w-50 is overkill.

I suspect the OP needs a decent oil of the correct weight mentioned in the handbook - 10-40

dude that consumption is fine.... ive had cars that would use all the oil in 5000k if ya didnt check it, i would be happy with that figure...

Penrite HPR10 is a good oil choice for the Magna's. It's fully synthetic (it used to be semi-synthetic), 10W-50 oil.

You could also try an engine stop leak after your next service, like this one:
http://www.nulon.com.au/products/Engine_Treatments/Engine_Stop_Leak/#.UQEuE4vaOUk

It can work very well for cars that burn oil. Very importantly, there are two types of 'stop leaks'. The one I linked to doesn't affect viscosity of the oil, it is a formulation to rejuvenate the seals. Over time seals shrink and harden and oil can leak past these (meaning oil consumption). This type of stop leak softens and swells (safely) those seals reducing or even eliminating leaks.

The other type of 'stop leak' s an additive that simply thickens the oil. I wouldn't recommend using one of these.

Thanks everyone for your feedback.. Now i can breathe easy knowing its not a problem.. Seems like its just a matter of using a better quality oil and not the ones mechanics use by the barrels.
I will most likely try a mix of HPR10 with a NULON STOP LEAK just in case.. Sounds like a good combo :D

Love AMC!

I would avoid an engine stop leak like the plague. You have confirmed you have no leaks so why bother. Use the Wynns oil system clean and give it an extended clean, use HPR10 and the supreme with the oil.

Oh ok.. i just thought as the product description said, could maybe tidy up the seals n all. But you're the expert.. maybe i'll just go with HPR10 for next 10k and see how it goes n if it needs any treatment or support later.

I would avoid an engine stop leak like the plague. You have confirmed you have no leaks so why bother. Use the Wynns oil system clean and give it an extended clean, use HPR10 and the supreme with the oil.

What is wrong with Engine Stop Leak? Wynn's also make one of those, the active constituent is the same.

Reason I ask is although there are no external leaks, I have seen this product stop older cars from burning oil (including someone's second gen Magna that was blowing blue smoke). This is in-line with the product literature.

I agree though, I would avoid the other type of stop leaks (the ones that just thicken the oil) like the plague!