What Race Oil do you trust?

[SSDiv6]

Originally Posted by e vassar

Have mostly used Mobil 1 and Lucas 10-30 in LT1 and LS cars We tried RP in the LT1 but would not keep the lifters pumped up. We have since went with solids (thanks nhra) 2 questions...do I need a additive with Mobil 1 or Lucas? since both cars have roller cams?...somebody mentioned Mobil 1 5-20 high mileage. Is this OK for all the time oil?
What about a safe heads up go fast oil?

After the engine has been broken in with a good break in oil, no need to put any additional additives in the oil, especially with a good brand racing synthetic oil.

There are many choices for a heads-up oil, but also consider the clearances you are running. Putting a thinner oil for a heads up run can also require overhauling the engine afterwards. Engine oils have a low surface tension and it operational temperature changes it. It is a risk you take.

Hydraulic lifters require a minimum of oil Centistokes to operate properly. The lower the oil viscosity, the lower the Centistokes. Centistokes is a measurement of the kinematic viscosity on engine oils, that defines the fluid friction and of the oil's film strength to support a load.

A 30w engine oil at 212 degrees F will have a Centistoke reading of 9.3 thru 12.5; however, 5w oil at the same temperature will have a 3 or less Centistokes.

[Mike Taylor 3601]

Originally Posted by Wade_Owens

Asking about Stocker Engines in this thread;
I have used Royal Purple 5w20 for the last few years. After being told time and again there are faster, better protecting oils out there, I'm now ready to look at some other avenues. What good experiences have you had with which companies?
I did try Redline 0-5 once also, it was faster than RP, but my particular engine smoked with it.
I know a bunch of guys preach the Joe Gibbs, but, I also know some of them supposedly said that their lifters wont pump up with it. True or False?

What's your opinions?

Wade O

I didn't read through all the replies.. I have used Lucas 20 race oil for bracket mode for years in mine and Randall's truck also... heads up/class I used Lucas 0 and have had very good results....
as far as pumping up lifters a stocker shouldn't have had a lifter that pumps up for a VERY long time..

[Bobby Fazio]

How about when you have Sherman or Smith "hydraulic" roller lifters? Can thinner oils be counterproductive?

[e vassar]

Originally Posted by Bobby Fazio

How about when you have Sherman or Smith "hydraulic" roller lifters? Can thinner oils be counterproductive?

All I can tell you is back when we had hydraulics in the LT1 car we were using Lucas 10-30 full synthetic race oil. Decided to try RP 5-30 and twice a couple rockers came loose. Went back to the Lucas 10-30 problem went away.