zlancer

iTrader: (1)

what is the best oil to use in a turbocharged engine??

DaTenshi

Mobil 1 senthetic? i use that.

b_tapper

I'd go full synthetic, get only the best too...that oil is what keeps your turbo nice and healthy.

zlancer

iTrader: (1)

castrol syntec 10w-30 full synthetic?

pjal84

Hey...I thought I told you that. Wait...that was PM's

saltydogfish

moble 1 full synth 5w-30

pjal84

That might be to thin for a turbo since it'll be running hotter than normal. The 5W is useful for places where it gets cold but he needs all the viscosity he can get to make sure the turbine spins nicely.

diesel_fan

I know this is a sensitive topic, as I belong to another enthusiast web site where oil engineers banter back and forth as such. With that said here goes:

For a turbocharged engine:

Use the HIGHEST quality "true" synthetic you can get your hands on that you are willing to pay for. As FYI, Castrol Syntec is not a "true" synthetic. Syntec is actually created from a super reprocessed petroleum (dino oil based) product. Mobil oil actually sued Castrol several years back that they were falsely stating that Syntec was a "synthetic" oil, since Mobil 1 was a "true" or chemically created (no dino oil) synthetic - which costs much more $$$ to produce.

Mobil1 is a very good to excellent true synthetic product. I used to use it. However, if you're willing to pay a few bucks more, and for a little more peace of mind, AMSOIL makes some of the highest quality "true" synthetics on the market.

AMSOIL caters to "oilheads" or "oil lunatics" such as myself and people who run extended drain intervals that don't change their oil until 10 to 20k miles. However, with higher performance / small displacement cars available (such as WRX and hopefully the Evo), AMSOIL has got a new market segment to go after. Their oil(s) take the most punishment under the worst high heat / high load conditions among domestically available oils - at least from what I've seen of their testing results on their website.

I'd go with a 10W-30 for a turbo engine, unless an owner's manual states otherwise. If you lived in Alaska in the dead of winter where it goes to 20 below, I'd switch to a 5w-30 so that the oil would have a lower temperature that it could flow freely at - meaning that it reaches the turbo bearings sooner after you start the car.

Best regards,

DF

pjal84

Motul makes a very nice 15W-30 synthetic. Extra thickness MIGHT be nice for your application buuuut...that's a maybe.

zlancer

iTrader: (1)

Question...
Can the oil actually boil off inside the motor? I ask this because my oil level is going down slowly but there are no apparent leaks...I think its because (since my oil line was too short) is touching my downpipe and may be heating my oil more then the oil can take. Can this be possible. In my engine now is Castrol 10w-30 synthetic. Thanks.

zlancer

iTrader: (1)

jus keeping this on top...need to kno...its rather important.....

pinoyesv6

its normal for your oil level to go down. uhm the oil is constantly moving, lubricating parts and etc etc. i mean its koo if it goes down a lil over a period of time but if its like burning the oil off or goes low in a short period of time i'd get worried

as for oil. i use the cheap stuff in my car. i don't really care for synthetics. i change my oil on race day...i change my oil like every 2k miles. can't afford to cahnge synthetic every 2k miles. so cheap stuff for me. if you were changing ur oil on longer intervals, better oil for u.