Haven't been on these forums for a long time, but coming back, it seems that things are heading in the right direction, ie: OCI's are generally creeping up.
Is there anyone else here who runs a truly 'extreme' OCI? Like for instance, I'm closing in on 40k miles (64k kms) since my last oil change, on Esso XD-3 0W-30 oil, preceeded by a 56k km (35k mi) OCI on a mixture of XD-3 0W-30 and Mobil1 5W-30. Engine is a GM 3.1L V6 code LH0 built in 1992.
Most of the UOA results I see, for lack of better words, have oil that has oodles of service left. Or very serious mechanical problems in the engine itself. There's very little middle ground.
Is there anyone else here who runs a truly 'extreme' OCI? Like for instance, I'm closing in on 40k miles (64k kms) since my last oil change, on Esso XD-3 0W-30 oil, preceeded by a 56k km (35k mi) OCI on a mixture of XD-3 0W-30 and Mobil1 5W-30. Engine is a GM 3.1L V6 code LH0 built in 1992.
Most of the UOA results I see, for lack of better words, have oil that has oodles of service left. Or very serious mechanical problems in the engine itself. There's very little middle ground.
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