i want to replace my oil tommorow.
i have a slightly smoking turbo and a stock engine.

what grade of oil would you reccomand?


thanks


Modified by RACEPAK at 6:12 PM 12/7/2006

 

Got an oil restrictor on it already?

You can use 10w40 but thats only a bandaid, not fixing your problems

 

yeah i got a restrictor.

10 40 isnt that heavy.

 

i used 20-50

 

did it worked for you?

 

it helped a lil, but its just better to either rebuild the turbo or get a new one

 

Why not fix the problem?

 

cool. i have a spare turbo. i'm just too lazy to install it

 

Don't oils all flow the same after they are at operating temp.?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ZacCarter &raquo;</TD></TR><TR><TD CLASS="quote">Don't oils all flow the same after they are at operating temp.?</TD></TR></TABLE>


no they dont, some are formulated specifically for turbo/supercharged ingines and the heat they generate, i believe its is Mobile1 15 or 20w50, is the particular oil.

once 30 weight has been cycled thru a turbo for a bit, it goes from 30wt to damn near water, and with the amount of extra fuel most of our cars require it breaks oil down so much faster. i know my oil smells like straight up C16.

But if you start with something a little thicker, it will usually damn near thin out from the heat, to exactly where it needs to be.

you will hear alot of people in the N/A forums, say that 15w50 wont even get into our factory bearings, but i ran a built motor on it for over 4 years, just pulled it and there is absolutely nothing wrong with it, 11 second passes for almost 4 years

 

i used to use 10w-40 with some lucas heavy duty oil stabilizer. kept a smoking setup going for thousands more miles, along with adding an oil restrictor

 

lucas' heavy duty oil stabilizer

 

hey, honestly since i switched to mobil 1 synthetic extended performance with my turbo jdm gsr, my freinds noticed a little bit of blue smoke when i really gun it hard, my motor was compression and leakdown tested and the guy said that the motor is in better condition than most N/A gsr motors and i know the turbo is good. i noticed my oil was gettin thin and not soo oily after like 2-3 weeks in the motor so i started using mobil 1 synthetic extended performan 15w-50 and everything started runnin better, no more blue smoke and seems stronger and faster. try bumpin up the oil weight with thicker stuff should help.