What Race Oil do you trust?

[THE LEGEND]

I have used Special of the week oil- Pennzoil- Mobil 1-Pennzoil synthetic-Royal Purple over the years. I switched to the AMSOIL DOMINATOR 10-30 3 years ago. It saved me 2 motors from a pickup falling off in my dragster and a broke oil pump shaft in my camaro.

One other thing is consistency. Lot of oils will get quicker as they break in. Amsoil does not. It runs the same whether it's Fresh or has 100 passes on it.

Chip Johnson

[Bob Gullett]

I used to use the Joe Gibbs XP-1 5-20. Never again. Extreme sludge created by this oil pluging oil filters. Just about cost me an engine. Now I use 10-30 Valvoline race oil. No issues and runs clean.

[Lew Silverman]

I just started using the Amsoil Dominator Racing 10W30 this weekend after finishing with the break-in oil, Brad-Penn 30W. I've noticed that the oil pressure has increased over the conventional oil, so much that I may have to go to a 5W20 to keep the pressure down. I'll know more after the first change when I can compare each oil.

Lew

[M Brand 505B]

This year I've mainly ran Valvoline 10-30 Vr1 conventional oil with great results. I cut apart my filter every 25 runs and saw hardly any material. 190+ runs so far this year changing it every 25 to 30 runs because it loses so much oil due to low ring tension (my fault).

Last year I used Royal Purple XPR 0-10 and it too worked awesome changing it every 50+ runs. 210+ runs last year on the engine and the bearings looked almost perfect. On top of that the Royal purple is a tenth faster in my engine.

Both oils are awesome and I recommend them to all*

*455 Pontiac Stock Eliminator Engine - The highest RPM it sees is 6100

[Dave Gantz]

Originally Posted by M Brand 505B

*455 Pontiac Stock Eliminator Engine - The highest RPM it sees is 6100

I'm no expert, for sure, but I wonder if piston speed is a factor, too.

[ron mattson]

There was a good post on speedtalk a while back about VR1, and a guy on there who
is a independent oil analist/engineer tested 50 top oils for lack of wear #1 ding ding ding
Pennzoil Platinum, then amsoil dominator then lucas racing oil!!! Now with real world
racing experience i will say there are quite a few oils that perform well for anti wear that
are not fast but will keep your stuff alive. As far as fast oils you got Royal purple, Red line
Gibbs, Lucas and im sure some others, one thing i tried that was reasonably fast was
using 4qts of kendall conventional 5/20 with 16oz of lucas breakin additive. I have used some of the other high ranked anti wear oils with good success for keeping stuff alive
but performance suffered considerably, i can say for sure that there is a solid .15 to .20
from best to worst.

[Wade_Owens]

I had the same, grey sludge with the RP 5w20, both the reg and XPR, didnt matter. It never would "mix" back in. When we first built the car and were hammering on the engine, we had it out often and found the same thing everytime. I would clean in out completely and find it again the next time.

Good discussion guys, what have some of the rest of you found?

I know the Gibbs is common in SS, any lifter pump up issues with the thinner weights in Stock?

Wade

[Bobby Fazio]

Used Red Line 20w synthetic race oil for last two years until I won the stock/super stock race at Maple Grove and Jeff Kundratic gave me a buy one/get one on some Lucas Race oil (10w30 conventional) that I put in the car for the Dutch. I heard you had to change Gibbs very often, I usually change my filter every 2-3 races and the oil 2-3 times a year or every 20 runs.

[RICK W]

Anybody using swepco 5/30 in ss engines?

[KURT GROSS]

Really interesting reading here.