This subject was covered months ago. Most modern oils
no longer contain the
ZDDP necessary to protect your engine.
Available at parts store and your GM
Say thank you EPA for saving my catalyst which I dont have.
(1) add a bottle of ZDDP additive to you oil when changing
(2) use Moboil 1 which still has some ZDP but it is being phased out
Shell Rotella oil. Usually used in deseil engine and still has
it. Rotella is an excellent oil to use. Available at
with using 10W30W for breakin and then switchin to 20W50W
From: Thomas Prager <firstname.lastname@example.org>
To: tigers_United_forum <email@example.com>
Sent: Thu, July 8, 2010
Subject: [Tigers] Best Dino Oil for 260/289/302?
I am running
20/50 dino, but now that I have 5,000 miles on the motor I am
switching to synthetic oil. Is there any reason to stick with