oil change = performance?

[jimmyp]

Ok guys maybe this is a no brainer but my diesel experience is limited to older heavy equipment and dodges with mechanical pumps..... Alright I understand that the Injectors in these trucks run off of high pressure oil... so does it stand to reason that as a vehicle goes without an oil change that performance would suffer? beyond the obvious of course..... and also does it do any good to add an HPOP to a truck if you have no intentions of throwing injectors at it?
Jim

[zpd307]

you will notice some power loss with older oil..... thats why its important to change the oil religiously.... and yes, even with stock injectors, a better pump will help with some power, better starts, and better idle.

[03_Turbo7.3]

just get a modded Hpop.. idle nicer and run better

[Stroken7.3]

Originally Posted by zpd307

you will notice some power loss with older oil..... thats why its important to change the oil religiously.... and yes, even with stock injectors, a better pump will help with some power, better starts, and better idle.

I can tell the difference in performance when the oil gets close to the 5000 mile change. I also change the fuel filter every oil change, only cause I can get Fleetgaurd ones for like 10 to 15 dollars. Between the oil and fuel filters I pay like 30 to 35 dollars. All Fleetgaurd.

[case7.3]

Yeah Especially changing the oil in your hpop reservoir will definitly give you more performance for you injection system.

[Dietoremain]

i'd say it could affect.. and not to mention i rinsed my oil pan with diesel last oil change and i got amazing mpg last tank....

[dmd]

Originally Posted by case7.3

Yeah Especially changing the oil in your hpop reservoir will definitly give you more performance for you injection system.

LOL... Dont be messing with someone that is new......

The HPOP oil is filled with the motor oil by the oil pump as the truck runs, it
does nothing to change the oil... Well maybe get 1/2 Qt more out and chance
getting dirt in the HPOP.

Just change the motor oil by draining at the oil pan. Getting my oil
tested at blackstone has shown that my oil starts to break down around
5500 miles. I change the oil at 5000 now. Send in a sample about every 2 changes
to see what is happening.

[Northcountrywood]

Originally Posted by duckslayer74

I can tell the difference in performance when the oil gets close to the 5000 mile change.

Same here. Compared to my 00 7.3, my 03 remains surprisingly clean at the 5k interval, but can see a noticeable difference in cold start, idle and acceleration once I change it.

I also change the filter and fuel filter at every oil change. Planning a diy oil bypass and will be interested to see what happens.

[ridiculously_necessary]

i dont usually see a difference, but good oil is critical to psd injectors. let the bad oil go too long or not changing when you should will screw up the injectors and you will see problems.

[NoRalPh]

Old oil, especially once the anti-foaming agent start to break down, will degrade performance for sure! BUT, I don't think you'd be able to see a difference between dirty oil, that was still "good", and new clean oil. As long as it's doing it's job, it's gonna run the same.

Originally Posted by case7.3

Yeah Especially changing the oil in your hpop reservoir will definitly give you more performance for you injection system.

Come on,,, that's just silly......