I need the expert opinion of all my fellow oil junkies here on BITOG. Application is a 2003 Chevy 2500HD 4x4, 8.1 Allison. I bought it a few weeks ago with 27k miles on it. I immediately did a full fluid and filter service. In 1600 miles so far it has used about 1/3 qt which is great for this motor. My one bad vice in life is that I can't stop my addiction to home brewing my own oil combinations. I know what many of you think about it but when I try to stop I can't. Is there a 12 step program in my future?
Anyways, 90% of my summer driving is at speeds of 70-80+ mph, cruise and AC on high, interstate hwy, open road driving. On the way out I hit a low temp of 45 at night in the Rockies and a high of 115 just outside of Death Valley. While making sales calls in So Cal it has been lots of 85+ degrees bumper to bumper traffic with the AC on high. But like I said, it is a 90% open road with 10% heavy city traffic conditions.
My oil mix this time is 4 qts Mobil 1 10-30, 1 1/2 qts Chevron dino 10-30, and 1 qt Chevron dino 30w. Delco PF454 filter.
With all the info above, what would you suggest for an OCI?
Thanks to all of you for making my addiction worse! Vern.
Anyways, 90% of my summer driving is at speeds of 70-80+ mph, cruise and AC on high, interstate hwy, open road driving. On the way out I hit a low temp of 45 at night in the Rockies and a high of 115 just outside of Death Valley. While making sales calls in So Cal it has been lots of 85+ degrees bumper to bumper traffic with the AC on high. But like I said, it is a 90% open road with 10% heavy city traffic conditions.
My oil mix this time is 4 qts Mobil 1 10-30, 1 1/2 qts Chevron dino 10-30, and 1 qt Chevron dino 30w. Delco PF454 filter.
With all the info above, what would you suggest for an OCI?
Thanks to all of you for making my addiction worse! Vern.