Search results

First UOA for the future-wife's car since I took over maintenance. I found out that Blackstone Labs calls you when your UOA is bad . Engine: GM 3.5L V6 (Oldsmobile Alero) Miles on Engine: 81,825 Oil: Castrol GTX 5W-30 Miles on Oil: 4,649 Additional Info: Oil was changed immediately after a...

First UOA on my Tundra. It's had a steady diet of M1 since the beginning (I changed the OEM fill at about 2500 and then but M1 in at 5000). This UOA is from the summer months, 16 mile daily commute and a few 200-300 mile trips. Truck is not driven very hard. I'd been changing the oil at 5k per...