Quote:
Originally Posted by Westersund
I've decided to revert back to an oil weight that the bearing clearance in the S54 calls for so I'm using Motul 300V 10W-40.
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Are you sure that's wise? the bearing clearance on the s54 rodbearings is considerably larger than on say a m54.
10W40 is also an oil weight that is used by a lot of people that have a m54b30.
Although it's difficult to say which engine runs hotter. The s54 takes longer to heat up evenly (cast iron block) but also has an oil cooler with thermostat.
I think in the end rodbearings are just a part of life for the s54/65/85 owner. Calculated costs for high revving undersquare engines.