Best motor oil?
 

I have a procharged 454 and currently running valvoline vR1 20w50. I found some older post but wanting to see what everyone else recommends

I just don't think you can go wrong with that oil.

https://www.walmart.com/ip/Mobil-1-A...-5-qt/20713647

Phosphorus : 1200ppm
Zinc: 1300ppm

5 quarts of full synthetic for $23 .. no brainer

I was recommended Rotella 15w-40...

I use 50WMobil 1 readily available at Walmart for about 25 bucks for 5 quarts.....

Amazon sells a store brand 20w50 that gets good reviews and test results and I have switched to that from the Valvoline 20w50 that you mention. I honestly don't think you can go wrong with any of the oils mentioned in this thread or any good oil in that weight range. They are all good oils and that's why so many people swear by a particular oil, because no one has problems with them! But, yes, the VR1 20w50 is a good choice.

i use a lot of rotella 15-40 but in big marine supercharged engines the best is mobile one V twin 20-50 its suposed to have a special additive package so the rollers don,t skid on the cam

https://cimg6.ibsrv.net/gimg/www.off...bd6fa080b3.jpg
Loaded with ZDDP for added protection, MR50 offers an application specific product designed for this demanding performance environment. Driven's certified lubrication engineers have worked with marine engine builders to develop a first-in-class synthetic product that delivers performance and value. Excellent protection for high performance marine engines. Ideal for flat tappet cams, big blocks and blown marine engines. MR50 contains rust inhibitors for winter storage and defense against ethanol blended fuel. Viscosity typical of 15W-50.

Hands down Driven but its not the one above ^^^^

If anyone has Driven questions I have been dealing with Driven for a very very long time. Back when it was Joe Gibbs days to current.

They spent actually a million bucks to test and come up with the formula for the 2 Nascar teams way back and a lot help from Lubrizol and Chevron.

A buddy of mine owns an oil analysis business and I have ran a lot of oils thru him.

As mentioned 20w-50vr1 or mobil 1. 15w-50.(M1 very cheap at wally world. )Which ever makes you feel better. Slight nod to vr-1 with flat tappets.

No 100 page oil threads on this site. :)

pretty good story here and IMO a good mention of oil temps and viscosity factors.. Even thou its a 7 years old article.

How It Works - Driven Racing Oil - Chevy High Performance Magazine

YEP!!!!!!! Been using it for 20 years. Also, free delivery to your door in 2-3 days.

Brad Penn 50W

15-50 Mobil 1 full synthetic here...

BUP, which Driven do you like, as I have been using Driven auto oil in old 70 Cuda for years

Schaeffer's, Driven, VR-1, mobile delvac 15-40

Driven seems like a good oil but at twice the price as Mobil 1 is it twice as good?
I`m gonna go with a no on that

driven mr 50 or brad penn

Mobil Delvac 1300 Super has excellent ratings. Holds up to big turbo diesels on extended drains and it doesn't break the bank.

Next question...if your engines have always had synthetic in them, will it hurt anything to go to the mobil delvac or similar?

We ran mobile one in supercat engines and it ate lifters up like crazy the engine builder called mobile 1 junk motorcycle oil. We switched to driven per his request and never had another failure.

I like Amsoil. Ive used it in all my toys, throughout the years... cars, boats, and motorcycles.

Won't hurt a thing. I used to run Amsoil in everything. Moved to Tennessee and have to pay excise tax on top of cost to have it sent here. So I did my homework. Switched to the Delvac 1300 Super. The Super Duty has almost 100k since switching. Zero issues. The motor doesn't know which is in it. The difference is in how fast it breaks down. I run the Delvac 7-8000 miles whereas I could run the Amsoil 25000.