Mobil One 5/30
$26+change for six quarts (Napa gold or Wix filters)
2000 Yukon 5.3 (no piston slap)
OCI=5,000 miles
98,000+ miles (purrs like a kitten)
16.5mpg avg (city mostly)
Castrol Syntec 5/20 (5 qt N/A in M1 5/20)
$21+change 5 quarts(uses 4.5 gts)(Napa Gold or Wix filters)
2005 Dodge Neon SXT
OCI=5,000 miles
6,000+ miles
37mpg
Traded for Neon but this is what I did:
Chevron Supreme 5/30
$14.00+change case at Costco(Napa Gold-Wix filters)
1995 Ford Aerostar
OCI=3,000
178,000+ change at trade in, no oil use, just old and wanted better mpg vehicle