Anyone using this yet in their old school?
Just saw this M1 “Classic” FS at my local Autozone
- Thread starter Nicasio
- Start date
what weight would you rather it be, 10w30 with high zinc seems more appropriate for a rebuilt engine
10w-40 and maybe 20w-50 for those that track more modern cars. But it could be a 10w-40 that's at the bottom of a 40 grade range and at the top limit for the cold cranking range. I just want to have at least 3.5 hths which I doubt this 10w-30 has. Yeah I know the old 10w-40 was polymer junk and was terrible. But modern 10w-40s have about the same VII as 5w-30's. 10w-30 vii is about the same as 15w-40's.
Is Zinc as beneficial for more modern cars with roller everything? Would this "classic" oil would be missing something that modern track cars want to see?
I've never really bought into the zinc stuff. Poor metallurgy or lack of a proper breakin on aftermarket parts probably can't be solved with zinc ...
People with a 300,000 mile 4.0 Jeep are worried about wiping a cam lobe so they run very expensive high zinc oil in an engine that doesn't' care. 1) the cam was work hardened 25 years ago. 2) the engine doesn't have enough valve spring pressure to wipe a lobe anyway.
What does this do for me in an old flat tappet V8 that Delo 400 or Delvac wont?
Good to see. Mobil 1 needed some more flavors to pick from.
My classics, with their flat tappet, higher pressure valve springs, would love this stuff.
Work hardening an already hardened cam face without yielding it? In what metallurgical world is this possible?
WiskyBadger
Site Donor 2025
I have a 355 that will like this. I’ve never seen it anywhere though.
It's not cheap, either. VR1 alternative?
WiskyBadger
Site Donor 2025
How much is it? Yea I would think it’d be a good alternative to VR1, depending on price of course.
This thread shows photos of the oil on the shelf, and the tag says $12.xx
I thought my eyes deceived me in the AAP this afternoon 
If we go by their 1996 cut off, I assume this oil is no newer than API SH?
If we go by their 1996 cut off, I assume this oil is no newer than API SH?
$11.99 Quart at Autozone
Surely it’s cheaper somewhere else, auto parts stores are “the worst place to get oil when it isn’t on sale” -my dad
Similar threads
