I got a 03 saturn ion for my son used with 135000 miles and changed oil due to unknown history (unknown oil looked clean).
i followed the oil change light since.
the first OCI was 5,500 miles, mostly city driving, with consumption of about 1-1.5qt (5W30 synthetic G-oil). seeing oil consumption, i decided to switch to mineral oil (5W30 Halvoline).
next OCI was almost 7000 miles, mixed city/hwy, with consumption of about 2 qts (regularly topped). seeing that oil consumption, i switched to 15W40, but there is already a consumption of about 4 qts in about 6000 miles (no oil change light yet). Looks much worse, but he drives mostly on hwy now.
clearly 15W40 is not helping. I guess i can try kreen piston soak/flush next. Anything else to try? Should I go back to thinner oils?
i followed the oil change light since.
the first OCI was 5,500 miles, mostly city driving, with consumption of about 1-1.5qt (5W30 synthetic G-oil). seeing oil consumption, i decided to switch to mineral oil (5W30 Halvoline).
next OCI was almost 7000 miles, mixed city/hwy, with consumption of about 2 qts (regularly topped). seeing that oil consumption, i switched to 15W40, but there is already a consumption of about 4 qts in about 6000 miles (no oil change light yet). Looks much worse, but he drives mostly on hwy now.
clearly 15W40 is not helping. I guess i can try kreen piston soak/flush next. Anything else to try? Should I go back to thinner oils?