I used it in mine, it would romp pretty good at any temp below *50 with the 15-40 dino oil in it.
After I put the REV-X in it would not romp period, started like it was *90 when the temp was down in the single digits. When I put it in I swore that I could tell a difference in the engine noise in about 5-10 minutes of it just sitting there idling, but the real kicker was the next time my wife got in the truck & we were going down the road she asked if I had done anything because it was much quieter to her.
Just my opinion but I don't see how it could "screw with the 7.3 high press oil pump" but then again I don't know everything either...lol
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2000 F-250 SCLB 2wd 7.3 auto PHP stock-65t-80dd-120race-high idle-no start 4"tb exh, wicked wheel, 3 guages, AIS, coolant filt,
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