dirtyratt

iTrader: (1)

I was using M1 synthetic but comp cams does not recommend synthetic with there cams so im back to just strait m1 10-30 k@n filter

budhayes3

iTrader: (19)

Mobil1 10w-30 synthetic...currently using ACDelco PF-59 filters until I run out (they've been discontinued, think I have 1 left). At that point I'll switch to whatever AC Delco is offering in a UPF, or possibly a Wix.

blue 01

iTrader: (1)

Valvoline durablend 10w 30, wix. Change the oil when it start to turn darker. Usually between 4 to 5 k

blake2kz71

iTrader: (17)

mobil 1 5w-30 full synthetic, i usually run a delco filter but i tried a k&n this go around. i usually change it about 4-5k miles.

dirt track racer 81

iTrader: (45)

when i put my 6.0 i started with valvoline 5w-30 and changed it after 100 miles...next oil change im going to stick AMSOIL 5w-30 in it

CHEVY6000VHO

iTrader: (2)

Where did you get this info??
Any of this hold truth? If so, why would that be?

Jim

2004Sierra

I use royal purple 5w-30 synthetic and k&n oil filter. change it b/t 5k-6k miles.

04BlackGmc

iTrader: (18)

5w40 AMSOIL

o2man98

No, that is not the case.

What the cam manufacturers are concerned about are the new API SM oils which lack some of the anti-wear additives that were thought to be crucial to cam wear. This is a major concern with FLAT TAPPET cams but since we are using ROLLER LIFTERS this is not something to be concerned with.

Now if you were running a flat tappet I would suggest running a diesel engine oil or even better, motorcycle oil.

Whether an oil is synthetic or conventional plays no roll in the Comp Cams concerns, it is the additive package that they watch for.

o2man98

Oh yeah, to answer the question.

I run AMSOIL TSO Series 2000 0w-30 and an AMSOIL EaO64 oil filter. One change per year.
https://www.amsoil.com/storefront/tso.aspx?zo=1436102