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Old 02-13-2009, 08:12 PM
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Another oil thread

I recently read a heated post on the 6.0 section about rotella oil being bad for the 6.0. The post started by talking about rotella synthetic but I believe it ended up talking about the regular 15-40. I guess it's not good for the injectors on that engine according to some people. If that's true does that mean that rotella has inferior lubrication compared to say dello or motorcraft? I used dello when I first bought my truck about 6 years ago but heard something about dello creating soot in the oil pretty quick and that rotella was a lot better, so I have been using rotella ever since. I am questioning that now. I just bought Motorcraft 15-40 from walmart for my next oil change just because I can get 5 qts for 10 cents less than 4 qts of rotella or dello.

So is there really any difference between regular oils? The diesel oils sold at walmart are motorcraft, dello, retella, mobil delvac,and castrol tection. Is one really any different than the others. What are some of your opinions? Just try to keep yourselves under control. oil is evidently a touchy subject.
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Old 02-13-2009, 08:17 PM
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And I really don't care about synthetic oil. I have no problem changing my oil every 3K miles and actually prefer it. So I really don't want to hear anyone say i should use amsoil or some other type of synthetic.
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Old 02-13-2009, 08:26 PM
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I was in the other thread too. Oil gets to be a touchy subject for some reason, that and tuners usually get feathers ruffled. I don't have any reasoning to back it up other than a lot of respected names in the diesel community swear by Motorcraft if you're going to run dino oil. Can't go wrong with OEM stuff IMO. Valvoline premium blue 15w-40 is another respected choice. For the full synthetics, Motorcraft, Mobil 1, and Valvoline premium blue 5w-40 are preferred brands. Not to say I've used them all, I'm actually running rotella syn 5w-40. But these are the brands I've heard the best things about the most from people I'd trust for advise.
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Old 02-13-2009, 08:49 PM
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I am running 5w40 Rotella also. I have used it for a few winters. I started using it to help with a cold start issue. My question is does anyone run 5w40 in the summer months? Also does anyone use 5w40 in the 6.o and if so does it help with cold start up?
99 Red Stroker
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Old 02-13-2009, 08:51 PM
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i run rotella 15w40 in both of my 7.3s and very pleased
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Old 02-13-2009, 08:52 PM
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Quote:
Originally Posted by 99 Red Stroker View Post
I am running 5w40 Rotella also. I have used it for a few winters. I started using it to help with a cold start issue. My question is does anyone run 5w40 in the summer months? Also does anyone use 5w40 in the 6.o and if so does it help with cold start up?
99 Red Stroker
Yes it does help with cold start up on a 6.0. It did for me. You don't notice much besides a more quiet motor with it in the summer time, but I like synthetics all year around.
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Old 02-13-2009, 09:18 PM
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I know it really helped my cold start issue on my 7.3. In the spring I would just go back to 15w40. I don't drive enough miles to change it out that soon and would like to run the 5w40 year around. I just wasn't sure of the heat factor when the temps hit 90 or 100 degrees. My son-in-law has a 6.0 and I've been trying to get him to switch to 5w40. His truck takes for ever to warm up just to get it to move.If the 5w40 will do for the 6.0 like it worked on my 7.3 it should be a good thin----g. HA!!!!
99 Red Stroker
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