10w30 = 1 quart burned a week, 20w50 = not a drop.

what does this mean? think its safe to boost an engine like this?

btw in a week i drive 200+ miles.

 

Clarification Question:

Was the 10W30 synthetic, and the 20W50 dino oil? Both syn, both dino?

Regards,
BigMoose

 

10w30 was synthetic. but i switched to regular 10w30 and that burned as well. 20w50 is regular castrol oil.

fyi i dont know why its burning... it was fine WITH my turbo but i started losing oil after i took it off. not a single drop under where the car parks btw.

 

Check you compression and do a leakdown test. Your ring seal is probably shot, either that or if the car gives a nice white cloud whenever you start it up it's the valve seals. The only two places oil can go are out the tailpipe or onto the ground.

 

FWIW I agree with texan. After you run his proposed tests you will know for sure. Its amazing how 50W will slow oil burning in tired engines ........ for a while (5-8K miles .......) Be sure to post the results of the tests so we can see how this long distance diagnosing goes.

Regards,
BigMoose

 

20W50 is a higher viscosity oil that burns much slower. I had the same problem in my eclipse, then I ran 20W50 and it burned slower, but 20W50 is bad for your engine. Fix your oil burning problem instead of risking ruining your motor.

 

i never actually see any smoke so i guess its not the valves? from what you guys are telling me.

 

it's your rings, because when you had the turbo on there was force that expanded the rings. when you took the turbo off, the rings aren't forced enough to seal. Think of it as a tired and worn out spring(it will sag). Hope you get what I'm saying.

goodluck.