Oil & Flat Tappets

[tf95ZR1]

I think this is applicable to our engines:

http://www.superchevy.com/how-to/cor...-down-engines/

[Paul Workman]

Yes, I've experienced a cam that went flat; on a flat tappet SBC, actually. And, here's a link to an article by Marc Haibeck with regard specifically to the LT5 and recommendations for our engines.

In short, Amsoil AMO 10W-40 has the ZDDP levels originally available and spec'ed for the LT5. If not AMO, then something equivalent with ZDDP levels sufficient to support not only our flat tappets, but those long double row chains as well.

P.

[PhillipsLT5]

Originally Posted by tf95ZR1

I think this is applicable to our engines:

http://www.superchevy.com/how-to/cor...-down-engines/

Article called for AMO 10/40, thats what Marc suggests

[rkreigh]

loads on the lt5 cam buckets are relatively light

with the light valves and relatively small light springs and the LT5 quality harnened parts we don't see too much of the stock stuff going flat

I use the mobile gold top extended with more zddp

but the amsoil stuff is a step up and better

but for sure the slippery stuff helps

[pantera1683]

Originally Posted by PhillipsLT5

Article called for AMO 10/40, thats what Marc suggests

How much is the Amsoil AMO 10/40 going for these days?

[We Gone]

Originally Posted by pantera1683

How much is the Amsoil AMO 10/40 going for these days?

About $8-10 per quart, small price to pay for piece of mind.

[pantera1683]

Has anyone actually ran into any problems using more common off the shelf oils such as Mobil 1?

[We Gone]

Ran Mobil 1 for the last 11 years in the 91 with no issues, I did change to Amsoil this year after Marc did the upgrades.

[Paul Workman]

Originally Posted by pantera1683

Has anyone actually ran into any problems using more common off the shelf oils such as Mobil 1?

When you say MOBIL 1....

C-LINK

[WVZR-1]

Originally Posted by Paul Workman

When you say MOBIL 1....

C-LINK

The majority of the Mobil1 product purchased "across the counter" isn't in your "LINK"!

The product most see and I expect use is in the mobil1.us left column either the M1EP, or the next conventional M1, the rest is there also:

http://www.mobiloil.com/USA-English/...Oils/Oils.aspx