fjh Posted May 6 Share Posted May 6 3 hours ago, Full Floater said: Interesting, thanks. Never heard the theory before on the overspeed/dynatard contributions to their failures. I've never exceeded the 2100 recommended max speed, are rarely reach that, perhaps thats why I have never had one fail. Do the jabobs brakes, have the same effect on them as the dynatards? I have 3 with Jacobs on them Yes 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75446-e6-engine-oil/page/2/#findComment-575244 Share on other sites More sharing options...
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