Originally Posted By: Miller88
I'm not sure if I would want to throw additives at something with that much sludge; I would be afraid of dislodging it and plugging the pickup tube or oil passages.
Short OCIs with good detergent oil is what I'd do.
I agree here...if there is sludge in the engine, releasing it all quickly could block oil pickup or galleries. A slow cleaning IMHO is better.
Originally Posted By: Nitrosnoopy
Did the oil change yesterday at 2500 miles.Sludge was was virtually no sludge in the filter when I cut it open,and no blobs came out of the oil pan.I refilled with maxlife 5-30 and standard purolator filter.Gonna do a 2-2500 mile oci and refill with Mobil 1 High Mileage.
After 2-3 more oil changes that way, I'd be comfortable extending a bit with a used oil analysis.
I'm not sure if I would want to throw additives at something with that much sludge; I would be afraid of dislodging it and plugging the pickup tube or oil passages.
Short OCIs with good detergent oil is what I'd do.
I agree here...if there is sludge in the engine, releasing it all quickly could block oil pickup or galleries. A slow cleaning IMHO is better.
Originally Posted By: Nitrosnoopy
Did the oil change yesterday at 2500 miles.Sludge was was virtually no sludge in the filter when I cut it open,and no blobs came out of the oil pan.I refilled with maxlife 5-30 and standard purolator filter.Gonna do a 2-2500 mile oci and refill with Mobil 1 High Mileage.
