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Valvoline premium blue 15w-40 or shell rotella t 15w-40?? I have always used Rotella t but today at my local tractor supply the valvoline is only 12 bucks a gallon. Are there any problems switching back and forth? My guess is same crap. The valvoline is recommended for cummins though. Any opinions on what's better? Or are they the same
Botlh oils mentioned along with a passel of other quality oils will do the job just fine. In fact, you will never be able to tell the difference internally as long as the owner does his jobs. Yes, you can change brands without prejudice, although I suggest staying with the same oil on a particular oil change.
2008 3500 stock QCLB dually Inferno red. Toys: Fuel injected Rampage, Road Grader, 1586 tractor, 60K genset, Honda ATV, and more. Back in business with a Hitachi EX270LC excavator. The dirt slinging has begun with 50+ acres to clear.
Nothing wrong with Valvoline Premium Blue. That's actually the oil recommended by Cummins.
All engine manufactures (OEM speaking) recommend a particular brand. I'm sure there are perks to the manufacture for stating xxx brand oil.
So, if Cummins recommended Shell Rotella, that would be fine as well. The only difference would be the perks to Cummins would come from Shell vs. Valvoline.
It's all about marketing.
Just ask any of the big oil analysis companies how much difference there is between oils. There all basically the same, more so these days with all of the EPA crap.
Unless you have "built" your engine i.e.; aftermarket valvesprings, camshaft etc. you really don't need to get real picky. With the above I think it's a good idea to add some supplimental zinc in the correct qty.
Additional additives to oil is really the only difference between brands, base stock is the same.
The Mind & Diesel fuel are terrible things to waste.... unfortunately, I've wasted a little of both
Haha the ole oil thing again. I called cummins and the recommend valvoline for all their engines and that is what they put in them when they get to fill. that was 4 months ago. I have used it since I bought my truck. Shell smells weird for a few hundred miles to me
98.5 Dodge 2500 SLT 24V 4X4 , K&N Cold Air, Air Dog 150, CFM Intake, 4" Farm Boys Diesel Exhaust, Juice and Attitude, 305 BFG A/Ts, Rebuilt VP44, MAP Switch, and still Throwing money at it. BIG DREAMS!! No Money
Last edited by hockgeiger87; 01-14-2013 at 11:21 PM.
Well thanks fellas that's what I was looking for. Just some opinions on what people like better. I kinda knew it was the same old stuff. I was a little curious if it stank like rosmella t lol. I guess the longevity should be the same too. I think I'll give the valvoline a shot this time and see how it is. And then ill go from there.
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