Switching to Rotella 15w40
So i think im going to make the switch to rotella 15w40, becuase i've heard so many good things about it. I have been running Penzoil 10w30 high mileage for the last 1500 miles and i havent been pleased. Is anyone running Rotella? Do i have to flush my system before i make the change? Or can i just drain the oil and make a direct switch? Thanks. My 96 cherokee has 167000 miles on it.
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nothing special, just regular oil change..
Why are you not pleased with the 10w30 HM? |
I don't think you actually need something that heavy but I will say I bet you'll see some cooler operating temperatures. I use the Valvolines equivalent in my 500hp turbo 4cyl. but that's a different story obviously. I don't see why you NEED to go to it. If you're wanting something heavier just use a 40 weight. Regionally, where are you located?
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Originally Posted by SamSissine2
(Post 945869)
nothing special, just regular oil change..
Why are you not pleased with the 10w30 HM? |
Unles you're putting it in a newly rebuilt motor that hasn't been run yet....save your money.
Rotella (or better still, Chevron Delo400) has alot of zinc in it. Great for preventing cam failures but no practical benifit to a motor that's already been run and is broken in. |
Originally Posted by s14unimog
(Post 945917)
I don't think you actually need something that heavy but I will say I bet you'll see some cooler operating temperatures. I use the Valvolines equivalent in my 500hp turbo 4cyl. but that's a different story obviously. I don't see why you NEED to go to it. If you're wanting something heavier just use a 40 weight. Regionally, where are you located?
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Originally Posted by FrankZ
(Post 945941)
Unles you're putting it in a newly rebuilt motor that hasn't been run yet....save your money.
Rotella (or better still, Chevron Delo400) has alot of zinc in it. Great for preventing cam failures but no practical benifit to a motor that's already been run and is broken in. |
I would decrease your initial # go to a 5w-30 or 40, or even a 0w-30 or 40. That is going to provide your internals the oil they need quicker then 10w and definitely quicker then 15w and reduce or eliminate that tick. Everyone has there opinions or preference so go with what you would like but that initial # is very important when it comes to internal wear @ start-up (where the majority of wear happens) the higher visco you go the thicker the oil is @ crank and longer it will take to flow to all parts and lubricate.
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Originally Posted by SamSissine2
(Post 945949)
I would decrease your initial # go to a 5w-30 or 40, or even a 0w-30 or 40. That is going to provide your internals the oil they need quicker then 10w and definitely quicker then 15w and reduce or eliminate that tick. Everyone has there opinions or preference so go with what you would like but that initial # is very important when it comes to internal wear @ start-up (where the majority of wear happens) the higher visco you go the thicker the oil is @ crank and longer it will take to flow to all parts and lubricate.
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Originally Posted by ACCoffroad
(Post 945847)
So i think im going to make the switch to rotella 15w40, becuase i've heard so many good things about it.........
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Originally Posted by djb383
(Post 945967)
Are u sure all those good things u've heard are about the 15w40......and not the 5W40?????????
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I use Valvoline 5w-30.
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Originally Posted by ACCoffroad
(Post 945956)
Whats a good 5w40 out there? Im not sold on the 0's ive heard that they break down quicker.
Mobil1 0w-40 European, T6 5-40, Royal Purple 5w-30 or 0w-40, Valvoline SynPower 5w-30 These are great choices year round but these are really just my preferences in oil. I always try to stick with a brand and just stock up when it goes on sale as the DIY Oil Change Special. |
Ok......if you're positive......'cause the 15W40 is plain ol' thick conventional motor oil, while the 5W40 is synthetic.
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Rotella 15W40 is not plain 'ol gas burner oil.
It is a diesel motor oil with a high zinc content. The EPA mandated the removal of zinc from gas engine oils years ago but it is still available in some diesel motor oils. |
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