Mixing engine oils

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jimbob29
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Post Fri Apr 12, 2013 6:16 pm

Can you mix oils of the same grade but with different brand names?i need to top up the mrs oil but wanted to check.the service book said it had 10w 40 synthetic grade but don't no what brand so could get some castrol 10w 40 synthetic and put that in?
zaust
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Post Fri Apr 12, 2013 7:02 pm

Why not just do an oil and filter change and then you know your topping up with the same.
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harry_p
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Post Fri Apr 12, 2013 7:06 pm

It'll be fine.
cheers,

harry
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jimbob29
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Post Fri Apr 12, 2013 7:08 pm

Thank you
ross_jsy
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Post Fri Apr 12, 2013 7:12 pm

If you are that worried, give the place that serviced it a call and ask what make they use. Will be ok though
HairyScreech
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Post Fri Apr 12, 2013 9:17 pm

forget about it.

In theory mixing oils is not a good plan, in practice it happens every day with no issues. Unless your REALLY REALLY unlucky then it will be fine.
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capri_rob
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Post Sat Apr 13, 2013 6:13 am

Mixing oils is infintely better than not enough oil :D
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Captain_Birdseye
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Post Sat Apr 13, 2013 7:11 am

zaust wrote:Why not just do an oil and filter change and then you know your topping up with the same.
What! why man? You trying to give this guy a job for the weekend or something? He's got a mrs, he doesn't need extra work.