How many miles on oil change

[mjc]

Just wondering how many miles people are going on thier oil changes. I picked up an 03 SD with the 7.3L. I've been trying to talk myself into going with Amsoil when it is time for my oil change. They claim you can go 15k to 25k. Does anybody actually go that long?

[Clay Henry]

I use rotella and I just had an oil sample tested at Blackstone labs. The sample had 6,000 miles on it and they said i should go for 7,000 on my next change and have it tested again. I have 53k miles on the truck and the oil looked fine as far as the test.

[mschn99]

you will never get 25k out of it without a bypass filtration system.....or oil filter changes on the standard interval. Even with amsoils "super duper" filter i would have a hard time running 25k on oil. The viscosity of the oil might be fine, but the additive package is broken down.

You can probably expect about 15k safely out of it.....but my opinion is ive seen more higher milage diesels that run strait motocraft dino and change it every 4k.......with a motocraft filter...

[borrisl]

I have owned several 7.3 powerstroke trucks.

On my current 7.3 PS Excursion:

2002 Ford Excursion 7.3 PS
Bought with 14 miles
Currently 89,700 as of 9/23/2006

I run bypass filtration on all my trucks. My "rule of thumb" is 2 years or 25,000 miles (sometimes a little more). Yesterday I changed the oil in the above excursion for the 3rd time. My first oil change was at 37,000, second at 53,000, and third at 89,500. Works well for me.

[F-350MAN]

does anyone know the diffrence between synthetic and synthetic blend??

[stump0331]

Originally Posted by borrisl

I have owned several 7.3 powerstroke trucks.

On my current 7.3 PS Excursion:

2002 Ford Excursion 7.3 PS
Bought with 14 miles
Currently 89,700 as of 9/23/2006

I run bypass filtration on all my trucks. My "rule of thumb" is 2 years or 25,000 miles (sometimes a little more). Yesterday I changed the oil in the above excursion for the 3rd time. My first oil change was at 37,000, second at 53,000, and third at 89,500. Works well for me.

wow thats impressive, whats a bypass filtration run $$$ ???

[borrisl]

I used AmsOil products for years but fell out of love when I had to pay their EXTREMELY OVERPRICED filters.

I use OilGuard products. A little pricey on the kits, but the elements are resonable. Oil Guard

[stump0331]

that looks like a very good investment. looks really easy to install too.

[cc-rider]

Does the vegistroke actually work? What about mantinance problems?

[Clay Henry]

Welcome to the site CC.
Yes, it actually works...lol. It better for the 4 grand i invested in it.
No mantenance issues.
If you would like to know more, lets move this discussion to the Alternative Fuels section.