what oil are you boosted guys using
 

when mrp installed my kit they switched my oil to rotella 15-40

Currently using Valvoline VR-1 10W-30.

Do you mean Rotella 5W-40, 10W-30, or 15W-40?
http://www.shell.com/rotella/products.html

A 40 grade oil is too thick, unless you have built internals, IMO. Rotella 10W-30 is probably a good choice for break-in though. Some boosted guys are using 0W-20. They're just using oils with robust base stock and additive packages instead of jumping up two viscosity grades and experiencing unnecessary drag. :thumbsup:
http://www.ft86club.com/forums/showthread.php?p=1180901

-Dennis

Im using Mobil 1 Synthetic 5W-30 but once I reach the 3000 miles I'll be changing to Motul or Purol.

Motul 300V 5W30.

I wouldn't recommend a 40 weight at all.

@CSG Mike

Where peak summer temps reach maybe 90-95 degrees max for say a week would 300V in 0-20w be sufficient for FI setups?? Avg ambients daytime summer being 75-85f and 35-55f at night.

I've been running Motul 300V 0W-20, it got pretty dark after 4-5k miles. Should I run something a little heavier?

That's just the detergents/dispersents (along with the ester base stocks) doing their job cleaning and holding contaminants in suspension. If you have sufficient oil pressure, then you shouldn't need to go any thicker based on the oil getting dark at 4-5k miles.

-Dennis

Redline 0w20, perfect UOA after hard track time.

Mobile 10-40 :) 25,000 boosted and strong

Motul 8100 0w-30

Which 8100 exactly ? :)

X lite

Amsoil 10w30

The Frozen North