Originally Posted By: DmanWho
This is exactly the kind of information I'd like to see.
Here's a little info for you, DmanWho (sorry about the formatting):
Chevy 8.1-liter gas engine (water tanker truck). RLI vs. Jiffy Lube 5W30s. Truck has ~20k miles on it:
Miles Fe Cu Sn Pb Cr Ni Al
6411 (RLI) 28 4 0 31 1 2 11
3428 (JL) 28 5 0 30 1 3 5
Ford F-250 5.4-liter gas engine. RLI 0W20 vs. Jiffy Lube 5W20. Lots of short-trip, heavy towing. Truck has ~81,000 on it:
Miles Fe Cu Sn Pb Cr Ni Al
9808 (RLI) 36 26 0 1 3 2 7
2430 (JL) 25 19 0 0 2 1 6
Ford Explorer 4-liter gas engine. RLI 0W20 vs. Jiffy Lube 5W20. Pool vehicle, lots of short trips. ~120,000 miles on it:
Miles Fe Cu Sn Pb Cr Ni Al
6247 (RLI) 25 17 0 0 1 1 8
1510 (JL) 11 7 0 0 1 1 5