Enthusiast
Rotella 15w-40 at 5k intervals. I use it because its got a good rep, it's available everywhere, the price is reasonable, and it comes in a 2.5 gallon jug!
Disclaimer: Rotella's price is starting to get up there a bit, I may try Travellers (TSC) 15w-40 or maybe Wal-Marts brand ummm can't think of the name. They are both almost $5 cheaper per 2.5 gallon jug.
Of course with oil changes only two or three times a year the extra 5 bucks ain't much of a savings.
Jeff
"But officer, I ain't Speedin', I'm just flyin' low"
2001 Silverado 3500 Dually LS Ext Cab, 6.6L Diesel, Banks Stinger Kit, 4" Exhaust, VR Straps, Bilstein shocks, 255/85/16 BFG KM2s
2004 Suburban 2500 LT 6.0L 4x4, Bilstein Shocks, Federico front/rear sway bars
1996 Caprice 5.7L LT1, B4U Suspension, KYB shocks & Hotchkis sway bars, BMR RCA - alas I miss ya.
2013 Caprice PPV 6.0L
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