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Message: [QUOTE="Bobs 7.3, post: 1457345, member: 8460"] I also just bought oil I found the delo cj-4 just 1 5 gallon pail at tractor supply as wal mart here didn't have any. I was reading the bottle of the new stuff and it says 50 percent more protection then the previous cj-4. I also noticed the rotella 15w-40 is the same api cj-4 as the new delo stuff. I was going to get the motorcraft but wally world didn't have enough of it. now ill like this delo and it will no longer be available in cj-4. Ihad paid for car gauge pro but never loaded it lol. when I looked it up it just said download or whatever and I made sure it was the pro but I cant for the life of me figure it out to set it up like the torque. torque seems way easier. I put gauges on and when I get out of it and go back in its all gone. im not sure how to do the cct and buzz test either. if I could get it set up then id work on the cct and buzz test. I ran some test today and came up with hpop=3057.3 wot run / 463.4 idle hot inj pw= 4920.0 wot /600.0 idle ipr= 57.6 wot map= 24.3 wot threw a cel when in wot run and I have dieselsites boost fooler? now the hpop pressure is looking good but still just that very slight romp at idle. better then before but there a bit. one injector sounds louder then the rest ticking even with the fuel rails undead headed but maybie it will quiet up some with strickly diesels oil crossover installed and the oil back to 15-40. im going to do the oil first next wed when im off and see how it acts before installing the crossover as I want to see whitch one does vs both at once. I may get the 29mm deep dwell and weld it to a piece of steel and remove the ipr wed too and clean and reseal it as I have a rebuild kit here. prob do that when changing the oil then the hpop resivour will be empty as ill suck as much of that synethic out of there and refill with delo after the ipr is redone. If it were o-ring leaks on the injectors I cant see it going up 800 psi under the same conditions as it was the same section of road. now I did notice if I run a lower tune say economy highway that injector is almost unnoticeable just ticks louder in the hot street and extreme. [/QUOTE]