It seems not to long ago there was a topic on this. I have used the search but can not seem to find it. People were telling about what they ran. I have a 440 blown engine and run solid lifters usually with additive. Just wondering what is good to use. Uncle needs to know for his car also he just got.

Thanks

Todd

I use Valvoline VR1 10x30 Wt. in my race motors now, I use to use Pennzoil 20/50WT racing but not anymore.
On your deal Valvoline VR1 10x30 should work very well, especially with medium valve spring pressures

Lot of Brad Penn used in these parts...

Hey Cab_: Could you elaborate on the change?
I have realized to some degree the hp loss with thicker oils.
do you think oils are just better and thus we dont need to be as thick as before?

When Shell Oil CO. bought Pennzoil they change the formula to make it better with some different additives, a friend of mine who crew chiefs a winning SCCA spec. car told me about it around 15 yrs ago.
Valvoline now has the exact same feel when rubbing it between my fingers and probably the exact same additives as Pennzoil used to make their race oil slicker with less resistance Valvoline VR oil is a lot easier for me to buy than Pennzoil racing oil also.
I have seen power gain by running hotter oils or thinner oils, hence using the 10W30Wt now versus the 20W50 WT oils
If Valvoline or Pennzoil offered a 5W10 racing oil I would use it
I use 5W20 WT Valvoline in all of my hot street motors with zinc additives, if needed for the cam and lifters. Same weight oil on street roller cam motors with no additives
I'm not completely sold on synthetic oils yet, maybe some day

This is a timely post for me. I have been running 20-50 VR-1 for a long time and my oil pressure was 80lbs hot. I have been trying some 10-30 while the weather is cold and I am not beating on the car as hard.

I believe that the 10-30 is a better choice for the engine. But since I have ran the 20-50 for years with no problems, I have been a bit hesitant to change.

But if it works for Cab, I'm in.

In my race engines usually use Valvoline vr-1, street cars with older cast iron engines I use shell rotella. I am going to try some amsoil in my street car after reading this log post from another forum.

http://speedtalk.com/forum/viewtopic.php?t=28365

http://speedtalk.com/forum/viewtopic.php?f=1&t=36565

Go to www.Bobistheoilguy.com 👍👍👍

Brad Penn for the bracket cars and street cars for me. The Heads up car uses Driven, by Joe Gibbs.

10-30 Brad Penn user here with a zinc additive because I have a solid lifter cam in my small block.

What are your bearing clearances?

I use Valvoline VR-1 in all our cars. 10w30 or 20w50 depending on which particular engine.

Regular Valvoline 10x30 syn. or Mobile-1 syn. and a Isky solid roller w/2.5+ on the rods and 3.3+ on the mains and hold good pressure and bearings look great after my 7-8 year tear downs...........

I am about to put in a large Amsoil order for car, boat and harley. Amsoil is giving me 25% off + free shipping. I use the Dominator oil in the car.

I've decided to just buy a 55-gallon drum of fish oil. Oil is oil, right?

We ran Valvoline 10w30 racing oil for years. Switched to Amsoil and saw a big difference in the appearance of the parts when we did our winter freshen and in the trash coming out of the filter, which we looked at after every weekend-even with the oil restricted to the cam and the top end. Also went from changing oil every dozen runs to every 50 or so, based on the appearance and smell of the oil.

With the Amsoil, we tried different weights from 10w30 to 0w20. The oil pressure with the water thin stuff got to be a little concerning, so we settled on 10w30, rather than tighten up the clearances. Clearances and internal leaks have to be adjusted and/or fixed depending on which weight oil you are using.

I think my message would be oil is not oil. Looks to me that some has more additives than others and pass testing with higher marks as well.

I use Joe Gibbs 10W40 in my street/strip car but I just checked Summit's site and it looks like it went up to $9.49 a quart.

My message is that the majority of oil discussions on here turn into big stinkin' piles of opinions without any empirical data to back them up.

Oil, religion, politics... possibly The Big Three of things which can never be discussed objectively.

I'll wait and see where this goes before I decide step back in here again.

LAT racing oil is what I run in the motor trans and and rear end