0W40?

[DRM500RUBYZR-1]

It is extremely difficult, nearly impossible, to prove something cannot possibly happen.
However, that does not mean that it can or will.

The Zinc and ZDDP content of the 0-40 is higher than most of what is often currently being used in these and other older engines.

Religion, politics and yes, oil, are very often controversial subjects.

Mobil One has been around since 1976.

While I understand it's formula has had to undergo changes, for mostly political reasons, i.e. Reduced exhaust emission requirements for catalyst longevity, that does not mean that it destroys engines.

I continue to favor Brad Penn for my LT-5, but I would not hesitate using Mobil One 0-40, and may even switch to it on my next change.

You may call me a Heathen, but I do have faith in companies such as Mobil and their products.

I do not believe or expect that this will change anyone's opinion, and that is OK.

Use whatever, as you wish.

Be happy!

Marty