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Re: 03 I'national 4300 DT466 Repeated Fuel Injector O-Ring Fail
Posted to HD/Fleet Forum on 11/1/2018

We don't use any fuel additives until the winter months. Then we are just using Howe's, so this has all occurred during warm months with no additives.

I will update that they installed the injectors from our parts truck last night. When I came in today, they... Login to read more.