What oil and coolant you guys run in the 6.0?

01PSD · Dec 30, 2011

I'd like to see someone do a video of their truck idling after a cold start with the 15w40 vs. one with 5w40, preferably same truck. Might be a long shot. Hell if my brother ever switches (which I'm sure he will when money allows for it) I will try to get video of both

Mwilbur516 · Dec 30, 2011

OK, I'll ask... For all you guys who say Rotella isn't good for the 6.0's, explain why. I'm not being a smartass or anything, I'm just curious why you say this. I asked this same question when I first got my 6.0 and a lot of guys told me the T6 syn was the way to go. Thats all I've run in my truck since I got it (except when Ford filled it up with Motorcraft 15w-40, that sucked) and I've had no issue's at all with the Rotella. BTW, when my coolant flush happens in the spring, I'll be using Fleetrite ELC.

sickslow · Dec 30, 2011

I also run conventional jrrotella with no problems. Im interested as well.

01PSD · Dec 31, 2011

I'm curious as to why it's so "bad" as well

Agjake11 · Dec 31, 2011

01PSD said:
I'd like to see someone do a video of their truck idling after a cold start with the 15w40 vs. one with 5w40, preferably same truck. Might be a long shot. Hell if my brother ever switches (which I'm sure he will when money allows for it) I will try to get video of both

If someone with 5/40 and get delete wants to do this I can get what my current motorcraft 15/40 does

Atsah · Dec 31, 2011

With the amount of people useing Rotella oil in there trucks because it's so easy to find and is less money, your going to have people that say it caused them problems.. I use the T5 and my brother uses the T6 and never an issue with it.. My brothers boss uses cenpeco oil in there 6.0's and that is the worst sh!t oil I have ever seen and he hasn't had any problems..

01PSD · Dec 31, 2011

I think Rotella, Valvoline, etc. are all good choices. Stay away from off brand stuff

dasboot · Dec 31, 2011

We use rottela at work and it seams to work real well for the big Cummins, Cat's and Navistar engines in the motorhome. I used reg 15w40 Rottela T6 in my truck last winter and the truck ran fine, but it made the exhaust smell bad and the cold starts sucked last year. Thank goodness for the block heater. I changed to Delo 400LE 15w40 and the exhaust wasn't as stinky, cold morning starts are smoother and I think the truck ran smoother.

dasboot · Dec 31, 2011

as much as I hated to do it, I went to Wal mart today to get some Delo 400LE and they were slap out. Walmart 12.95 gal. Stopped by a auto zone and they wanted 17.99 gal. I guess I will hjave to wait until restocked or go to Athens wally world. If I can't find anything this weekend, I think I will try some of my truck venders and see what they have. I,ll call Peachstate Freightliner and see if they carry Delo.

Atsah · Dec 31, 2011

A lot of people like the Delo, I may have to try it someday..

01PSD · Dec 31, 2011

I purchased Rotella 15w40 at Advance Auto Parts for 18 bucks a bottle. Next stop on my list was Walmart... and son of a b!tch it was 4 bucks cheaper, I was pissed. :fustrate:

Dave · Jan 1, 2012

Atsah said:
A lot of people like the Delo, I may have to try it someday..

The delo causes mega stiction in my truck

alwil · Jan 1, 2012

Rotella T-6 and Ford Gold coolant.

dasboot · Jan 1, 2012

I changed my oil, oil filter and fuel filters today in my 2005 6.0l. Delo 400LE 15w40 $12.85 gal @ Walmart. Replaced 1 qt of oil with BG DOC diesel oil conditioner. We will see with this cold snap coming in, if there is a difference. I thought there was, but that could have been from the fresh oil. Diesel Kleen to the fuel.

shvlhead78 · Jan 1, 2012

I run Scheaffers 15-40w syn blend in the 2000 f250 193000 miles
And in the 2003 f350 i run there 5-40w syn
it gets pretty darn cold here in St. Louis and i cannot say the F250 starts any different than F350

turbie · Jan 1, 2012

been running premium blue in my truck since i bought it 3 yrs ago, been getting some stiction in the mornings and rough starts if not plugged in overnight. might change to extreme blue since i have a 50 dollar visa gift card.

MikeDually · Jan 4, 2012

Jim NAPA in the square sells Valvoline Extreme full synthetic. it's what I use and we live in the same city. They carry G-05 also. Sometimes the oil is on sale too. Good luck on the filters, I end up having to go to the dealer. Autozone sometimes has a motorcraft filter hiding on the shelf.

HaysKSFirefighter · Jan 4, 2012

I'm running rotella t6 and currently ford gold...going to flush it out to switch to elc tomorrow if I can find enough distilled water...I've been to three walmarts and I only have 10 gallons in my posession

Moremph · Jan 6, 2012

I have never had stiction problem while running delo!

Moremph · Jan 6, 2012

Atsah said:
With the amount of people useing Rotella oil in there trucks because it's so easy to find and is less money, your going to have people that say it caused them problems.. I use the T5 and my brother uses the T6 and never an issue with it.. My brothers boss uses cenpeco oil in there 6.0's and that is the worst sh!t oil I have ever seen and he hasn't had any problems..

It is hard to argue with changing an injector every 30k miles too over 475k with only 2. So hard to argue that im not going to look a gift horse in the mouth and i am not willing to try any other oils. Synthetic is over rated. The truck with 675k on it gets 10k mile oil changes and 20k fuel filters however do the math we average 10k a month