Boosted B18c1
t3/t4 14 psi.

So which oil should I use I've been told everything from 5w50 to 20w50. It's a turbo car, so I just want to make sure I have the right oil in the bitch.

TYIA.

 

i run 15w50 mobil 1 in mine during the hot part of the the summer and in the cooler months and the winter i use 10w30.

 

20/50 Valvoline VR1

 

castrol gtx 10-30

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Junk Ex &raquo;</TD></TR><TR><TD CLASS="quote">castrol gtx 10-30 </TD></TR></TABLE>

 

10w-30

 

Mobil 1 10w-30

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc2ls-t &raquo;</TD></TR><TR><TD CLASS="quote">i run 15w50 mobil .</TD></TR></TABLE>

 

those of you running 10w30, may I ask why?

I'm guessing your cars were 5w30 from the factory, why increase the cold start viscosity but keep the hot viscosity the same? Just curious, not knocking anyone.

I used to run 5w30 but now on my built motor I've stepped up to 10w40.

 

10W-30 tends to be a bit more stable and will hold its grade longer. So, if you don't need thestart the engine in sub-freezing weather, you might want to consider a 10W-30 over a 5W-30.

 

The wider the range, the less heat stability the oil has for a given type (dyno/syn). That is it will start to go thin sooner.

 

I used Red Line Oil 10W-30 for so long. New set up, I have been running the Havoline Racing Revolution 10W-30. That seems to be a really good oil. Liking it a lot.

Jason

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Junk Ex &raquo;</TD></TR><TR><TD CLASS="quote">castrol gtx 10-30 </TD></TR></TABLE>