Oil Change

[PreciousMetals]

New owner of a 2002 F250 7.3 with 135,000 miles.

Regarding an oil change, would you veterans recommend a 15w-40 oil, 15w-40 oil with an additive like prolong, or a synthetic? I do understand there is cost involved in this thread. I can get the Rotella for about 13/gallon, and the Rotella synthetic for about 21/gallon.

Not really asking for the best oil, just what you guys do and what you may recommend for long life.

Also, do you guys use any fuel additives?

Thanks in advance....

[bruce51d]

i run schaeffers 9000 full synthetic change it every 5-6k or say, oil analysis says i could go further, i would never run conventional oil. in my fuel i use 2 cycle, sometimes some diesel kleen

[JEL]

If you live in a cold climate, then 5w40 synthetic would probably be best. Lots of guys have run these engines over 400k on dino oil, modern dinos are very robust and do a great job. You can use synthetic 5w40 like Rotella T6 year-round, but a lot of guys in colder climates only run it in the winter and switch back to 15w40 in the summers just to save money.

[mxfever090]

I would recommend using a good oil. I run Rotella 15W-40. Once when I was low on money I pumped 3 and a half gallons from my dads bulk tractor oil and dumped in for an inexpensive oil change. Dumb. The truck ran like poop for 3 days. It had a really bad miss at idle to 1500 rpm's. I'm assuming the oil aerated and ended up changing it out 3 days later when I got my paycheck and the truck went back to normal.

[steele86]

i have used delo400 15-40 for years change every 5000 my dad was ran delo in his psd since 96 he has over 600k on hes truck

[ToMang07]

15-40 synthetic. Unless you live in the arctic, I have had no problems cold-starting in -25*F with synthetic.

[rufushusky]

Originally Posted by JEL

You can use synthetic 5w40 like Rotella T6 year-round, but a lot of guys in colder climates only run it in the winter and switch back to 15w40 in the summers just to save money.

^^^ I do something similar to that, except I run Rotella T5 10w-30 in the winter. Where do you live? How cold does it get in the winter?

[SyN]

You can run T510W-30 yr round for that matter without any issues... I use a mix of T5 & T6...

Oil Additives--->Rev X During the summer months I use LC20 from lube control...
Fuel Additives--------->Semi Synthetic TC-W3 & Stanadyne & FP60 from lube control...
I rotate between the Stanadyne and FP60...

FP60 is the only fuel additive that I have used that has not vastly effected my UOAs

Prolong is a no go...Never!

[PreciousMetals]

Thanks to all. I live just outside Atlanta and went with the T6. The truck seems to really like it.....

[ToMang07]

Originally Posted by SyN

You can run T510W-30 yr round for that matter without any issues... I use a mix of T5 & T6...

Oil Additives--->Rev X During the summer months I use LC20 from lube control...
Fuel Additives--------->Semi Synthetic TC-W3 & Stanadyne & FP60 from lube control...
I rotate between the Stanadyne and FP60...

FP60 is the only fuel additive that I have used that has not vastly effected my UOAs

Prolong is a no go...Never!

Just out of curiosity, how did fuel additives effect your UOA? I'm running PS Diesel Kleen (Grey/White) and Ashless 2cyl oil.