A farm and fleet store in my area (Runnings) has Chevron Supreme on sale for $2.19 a quart, so I decided to use it in the Buick. I had a couple questions about the oil (regarding the GM6094M spec that was absent from the bottle), so I called the Chevron Techline, and the guy I talked to was pretty helpful. When I asked about the warranty, he said that they stand behind their products and that they have a guarantee, though it's rare that it gets used. He told me that Chevron supreme would be fine year round in my climate (5w30) and explained the 5/10W30 rating. He seemed to know what was going on. He recommended changing generally in the 3-5 k range but said to go with the manufacturer recommendation. When I asked him what the difference between CS and Havoline was, he said it was just that the Havoline had more moly. I finished by asking about the oil in general, and he said that it is a "quality, premium product" and that they hear good things about it from people, again, no surprise. But they were generally helpful and friendly and I was glad to have called. Just thought I'd share this info with you all.
Curious, why didn't you choose the HAVOLINE over the CHEVRON? MOLY is a great additive to have for your engines internal moving parts. Was the HAVOLINE more expensive?
I used to use CS back in the early 2K's. My dad had his own heavy equipment operating business and used CHEVRON lubricants exclusively. They make great products.
I thought Chevron Supreme had loads of moly?
I have 5 gallons of CS 10w-30 in the garage. More good news. Thanks!
Interesting-PQIA's testing shows CS 5W20 with 142 PPM moly, Havoline 5W20 with 44 PPM, the exact opposite!
OT: the SL version of Havoline had boat loads of moly, assuming the boats were transporting moly.
At the time (2005) it was the conventional darling of BITOG.