Synthetic/Conventional oil
#1
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Synthetic/Conventional oil
Is it okay to switch back and forth? Or will things blow up?
I think right now I have 5W-40 Synthetic, but I was considering using 'ol Rotella 15W-40 on my next oil change to save some money.
I think right now I have 5W-40 Synthetic, but I was considering using 'ol Rotella 15W-40 on my next oil change to save some money.
#2
there are some that will say putting synthetic in an older truck that hasn't run it before will show leaks, I really don't know
my truck always had rotella but I put synthetic in it for one oil change at about 150k miles, worried about it, drained it and switched back to rotella and I am staying there, 200k miles and it doesn't use or leak a drop
my truck always had rotella but I put synthetic in it for one oil change at about 150k miles, worried about it, drained it and switched back to rotella and I am staying there, 200k miles and it doesn't use or leak a drop
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The dually already leaked plenty so I'm not sure if it mattered much!
#7
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Since the molecules of synthetic oil are smaller than dino, it will "find" a leak earlier than dino. That doesn't mean the synthetic caused the leak, you would have had the leak eventually anyway.
Amsoil is completely compatible with dino. I could look it up if you want.
Amsoil is completely compatible with dino. I could look it up if you want.
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#8
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I know you live up in cold country and the syn. oil should help on cold starts. We tore down an engine last week 1,400,000 and had never run anything but rotella dino oil. The bearings still looked good. Just my opinion on Rotella 15 w40.
#9
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I use valvoline cummins blue oil, I have hurd its not a good idea to switch back and forth. But if you use a quality oil and change it when your suppose to I dought it would hurt anything.
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