Oil Preference Feedback:

[Captain D]

Good evening mopar family,

This was my first season running the green racing oil, 'Driven' (previously, I've used VR1 & Brad Penn). Anyhow, a buddy said that AmsOil may be better. Granted, I realize that everyone has their own preferences, but anyone else here feel the same that AmsOil is a better quality product over the Driven oil for our 68-70' Chargers?

Thank you for any feedback,

[496polara]

Just my opinion but with the quality oils you mentioned I think you are splitting hairs.

[Dino]

  

[b5blue]

https://www.hughesengines.com/Index/index.php they like DRIVEN. 

[John_Kunkel]

A good read:

https://autooilandfluid.com/the-truth-about-synthetic-oils-and-engine-wear/

[Captain D]

Agreed, opening a question like that is like opening Pandora's box,  , and, probably can't go wrong with any of those options having those key additives. I'll keep running the Driven...

[b5blue]

 

[Kern Dog]

You surely know this but a change to a roller cam and lifters pretty much alleviates any concern about the oil that you use.

[John_Kunkel]

You surely know this but a change to a roller cam and lifters pretty much alleviates any concern about the oil that you use.

Only "alleviates concern" about the cam lobe/lifter interface. Look at all the other metal-to-metal interfaces in an engine with no bearing material.

[Kern Dog]

I have yet to hear a compelling reason for the continued use of high zinc oils after switching to a roller cam.
If one has moly coated rings and standard rod and main bearings, how are our classic engines so different from modern engines to need the zinc?
When I bought the roller cam stuff to make the swap in my 440/495, (Still to come, I've been slow to jump in) Dwayne Porter advised me to keep using the "Driven" oil.
Now, I know that using it won't hurt anything but I wonder why it is still necessary.

[John_Kunkel]

I have yet to gear (sic) a compelling reason for the continued use of high zinc oils after switching to a roller cam.

You don't hear much on the subject unless it relates to camshaft/lifters but look at all the other components in an engine that are metal-to-metal like the roller bearings inside the lifters/rockers, the pushrod interface, the intermediate gear/cam interface, timing chain, etc. These are all high-pressure loads that benefit from high-pressure additives.

There might not be a critical NEED for ZDDP on those components but they will BENEFIT from it...ditto for synthetics.

[Kern Dog]

All of those components exist in my 2007 5.7 Hemi that has gone 413,000 miles on regular 5 w 20 non synthetic oil.
Maybe I am the outlier but how it regular oil fine for every engine that I have except the ones with higher spring rates and a flat tappet setup?
Four other V8, flat tappet engines in vehicles out back with milder cams, weaker springs and they run regular oil with no clear drawbacks to it.
I'm still open to hearing a proven benefit from the ZDDP or synthetic oil in retrofit roller cam mills as well as lower performance engines.