Thread: vehicle maintenance

Originally Posted by feelay

huh?

What I said first time I heard this. 7.3s and apparently 6.0s fuel injection is run off of oil pressure. Low oil pressure and they wont crank or run, bad orings around the injectors will cause a miss as the cylinder will not get any fuel. Its a strange design but a very efficent one and it is a protective one, you can't run em out of oil, they will quit due to lack of oil pressure and still have 7 or so quarts of oil in them. Also, if you go too long between oil changes and the oil breaks down you lose performance because of a lower oil pressure. 7.3 powerstroke without oil pressure is scrapmetal!!!

I fuel it, maintain it, run it.....and that sucker flat out will run!

Originally Posted by feelay

I fuel it, maintain it, run it.....and that sucker flat out will run!

Good trucks for sure!!!!

Originally Posted by Rees Guide

What I said first time I heard this. 7.3s and apparently 6.0s fuel injection is run off of oil pressure. Low oil pressure and they wont crank or run, bad orings around the injectors will cause a miss as the cylinder will not get any fuel. Its a strange design but a very efficent one and it is a protective one, you can't run em out of oil, they will quit due to lack of oil pressure and still have 7 or so quarts of oil in them. Also, if you go too long between oil changes and the oil breaks down you lose performance because of a lower oil pressure. 7.3 powerstroke without oil pressure is scrapmetal!!!

Yep they are both HEUI versus common rail on 6.7
On the heui any hpo (high pressure oil) ) leak will cause no start, bad running, etc. And Feelay is correct---the 6.7 is a beast.

Originally Posted by KDAVID1

Yep they are both HEUI versus common rail on 6.7
On the heui any hpo (high pressure oil) ) leak will cause no start, bad running, etc. And Feelay is correct---the 6.7 is a beast.

I freaked out a dude in a new corvette other day!

Very cool. It's amazing what these 8000lb trucks can do. And the best part is to get more it only takes a bit of computer tuning

While on vacation this week I needed a tire for the camper. So a visit to a walmart. 5 quart jug of my oil was $18, 1 quart bottle was $2.19. I bought 3 cases.

Wally world does have the best prices on oil. Rotella 5w40 here. Almost 4 gallons at a time