My 7.3 has been seeing less miles over the last several years, and a lot of those have been short trips. And lately the oil burning has been about 1 qt per 1000 miles.
So I figured that maybe the rings were sticking -- And decided to try adding a couple pints of Amsoil engine flush (FLSH) then run the engine for about 4 hours (not driving, just idle and at 2000 RPM), then change oil.
The FLSH directions say to idle for 10-15 minutes, and I tried that before without any change in oil consumption. Since it's essentially a detergent, why not try giving it a lot more time to work on the rings! So far it's made a significant improvement. After 1250 miles the dipstick is only down 2 cross-hatch marks from full. I'll guesstimate 1/3 qt in 1250 miles (~1 qt per 3750 miles if the rate stays the same).
If anyone else tries this, please post in this thread regardless of how it works out. Maybe this procedure could help a lot of high mileage engines (not just our IDI's) with oil consumption...
So I figured that maybe the rings were sticking -- And decided to try adding a couple pints of Amsoil engine flush (FLSH) then run the engine for about 4 hours (not driving, just idle and at 2000 RPM), then change oil.
The FLSH directions say to idle for 10-15 minutes, and I tried that before without any change in oil consumption. Since it's essentially a detergent, why not try giving it a lot more time to work on the rings! So far it's made a significant improvement. After 1250 miles the dipstick is only down 2 cross-hatch marks from full. I'll guesstimate 1/3 qt in 1250 miles (~1 qt per 3750 miles if the rate stays the same).
If anyone else tries this, please post in this thread regardless of how it works out. Maybe this procedure could help a lot of high mileage engines (not just our IDI's) with oil consumption...
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