That is certainly a concern. Much like a plastic gas can expands in the heat. In my case, our truck will mostly be residing in the garage or the storage unit (at least in the summer) which should mitigate that risk.
2 stroke oil is better preferably ashless
Not in todays diesel. They are designed to run on low sulfur fuel. Atf will screw stuff up now.
This. Used to just keep a 6 qt box under the seat. Pour a qt every fill up no matter how much was in the tank.
100% the 7.3 was engineered for Low Sulphur, not ultra low, sulphur was a lubricant, mainly good for the high pressure pump parts.
I do the same. I have four 8oz bottles that I refill from the 1 gallon jug of XPD. I keep them in a box in my truck with some other stuff.
I think Marvels has a cult following. I need to start using it in all my vehicle. guys swear by it so much I may start using it as salad dressingI was using Marvel Mystery Oil until @Flyinbowtie told me to use the stuff he swears by...
The kit I bought came with these bottles though. Very handy.
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I used about half a qt. now and then in my 6.2 and 6.5 dogs which had the mechanical standine pump dealio. Was advised not to use it in newer high pressure electronic stuff. Now using the PS additive for the durtymax and audi. Audi has a Bosch pump, so hopefully it won't "CP4" on me.
The only part of the fuel system on a 7.3 that is high pressure uses engine oil. Fuel pressure is 55-70 psi. The biggest impact ultra low sulfur diesel had on 7.3s was mileage. An easy 4 mpg drop.
In that case the injector is the "pump", just a hydraulic intensifier, which also greatly benefits from lubrication on the fuel side.
A mechanic I know told me ATF or two stroke oil. Just make sure it’s a non synthetic oil. Was in reference to my 05 5.9, didn’t notice any change, noise, mileage or otherwise.
I have a friend that is a diesel mechanic that does this. Only he does it at each OIL change.
Maybe that’s what I meant
