Mixing motor oils
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Laughing Gas
Joined: May 2006
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From: Oakville, Ontario
Mixing motor oils
I am about to change my motor oil. Realized that I may be short about a quart of Rotella 5w40, but I still have some Mobil 1 5w40. Is there a problem in mixing the two.
I have used both in the past. I use what ever is on sale. This time it was Rotella T6.
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I have used both in the past. I use what ever is on sale. This time it was Rotella T6.
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Lead Driver
Joined: Mar 2010
Posts: 5,505
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From: Woodbridge, Ontario, CA
Is that the same leftover bottle of Mobil 1 5W40 from your head stud change John?
There's no harm in mixing oils, as long as you're not mixing engine oil with eight litres of Mercon SP when refilling your engine.
There's no harm in mixing oils, as long as you're not mixing engine oil with eight litres of Mercon SP when refilling your engine.
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Laughing Gas
Joined: May 2006
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From: Oakville, Ontario
Is that the same leftover bottle of Mobil 1 5W40 from your head stud change John? No, it's fresher then that.
There's no harm in mixing oils, as long as you're not mixing engine oil with eight litres of Mercon SP when refilling your engine. I still wake up thinking I just finished my oil change and put in trans fluid instead.
There's no harm in mixing oils, as long as you're not mixing engine oil with eight litres of Mercon SP when refilling your engine.
I still wake up thinking I just finished my oil change and put in trans fluid instead.Thanks for the reminder though..........
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