I've been browsing this board since Nov. '02 and I'd like opinions from any of you esteemed and enlightened individuals who care to impart one.
I want to go with Chevron Delo 400 on my next change for my 1999 Suburban with 74,000 miles, for several reasons which include the outstanding UOA on the BMW with 6,200 miles on the oil. I'm planning on running it at 4,500 mile drain intervals, with a UOA at perhaps 3,000 or 4,000.
The 15w40 is readily available at WalMart at a good price, and with the hot Texas summer coming on I like the idea of a 40wt. However, my owners manual calls for 5w30, or 10w30 as an option in temps above 32F. The manual specifically states "do not use 20w50". No further mention about other grades.
I've read other posts here, and in one TooSlick (whose opinion I value greatly) states "I have been recommending it to owners of older Mercedes diesels as well as slow revving GM V-8 engines."
I'll be changing soon...should I go with the 15w40 or order the Delo 10w30 from the local distributor? Any opinions would be appreciated
I want to go with Chevron Delo 400 on my next change for my 1999 Suburban with 74,000 miles, for several reasons which include the outstanding UOA on the BMW with 6,200 miles on the oil. I'm planning on running it at 4,500 mile drain intervals, with a UOA at perhaps 3,000 or 4,000.
The 15w40 is readily available at WalMart at a good price, and with the hot Texas summer coming on I like the idea of a 40wt. However, my owners manual calls for 5w30, or 10w30 as an option in temps above 32F. The manual specifically states "do not use 20w50". No further mention about other grades.
I've read other posts here, and in one TooSlick (whose opinion I value greatly) states "I have been recommending it to owners of older Mercedes diesels as well as slow revving GM V-8 engines."
I'll be changing soon...should I go with the 15w40 or order the Delo 10w30 from the local distributor? Any opinions would be appreciated