Valvoline Blue 5w-40 3k mi; 7.3L PSD 166k mi
- Thread starter Litzner
- Start date
Yeah, 2001 F350, Hydra tuned at 140X for daily driving, turned down to 80T if I am towing, crank case vent mod to under the cab, up-pipes replaced, IAH delete, Riffraff Fuel Rail Crossover, and a 6637 Donaldson Blue filter mod. This OCI I also installed a new KC Stage 1 turbo and replaced the factory pedestal with a EBP valve delete pedestal, which is why I ran a shorter OCI, just in case there were some break in metals from the new turbo.
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Sounds like a keeper & you're on top of monitoring it. Did the turbo upgrade make any difference? I've thought about that turbo & they are getting more recommended these days.
The viscosity remained fine, but the low flash point typically indicates fuel dilution. Blackstone doesn’t use GC, so the 1% is likely higher based on the flashpoint result. Thanks for posting.
It wouldn't surprise me, as it idles a lot in the winter. I have to pull it out of the garage to get blower out and in. If I am going to start it I hate just turning it right off cold to just start it again when I am done, so I let it idle and warm up while I am taking care of the very long drive way. It hardly ever gets driven in the winter as just try to use the company car for everything so I can keep the Michigan cancer off of it.
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dnewton3
Staff member
Being in MI and after the EBP delete, I'd say it may take a while for that engine to warm up. Better have a 12v plug-in heater for the cab!
I was concerned about that myself but I really haven’t noticed much of a difference before and after the EBP valve and IAH delete.