Can you mix different weight motor oils like castrol 10w30 with castrol 20w50?

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... ZX-14 Q & A : What weight oil do you run? ... "Can I mix different viscosity grades of motor oils?" ... he says Castrol causes a varnish in the motor. - Read more

A part of the oil certification tests is compatibility of mixed brands. If it has a rating like SL or SM it will mix just fine. you can mix a straight weight with a ... - Read more

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Can you mix different weight motor oils like castrol 10w30 with castrol 20w50? resources

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How to Mix SAE 10W-30 With 5W-30 | eHow

You May Also Like. 5W30 and 10W30 Differences ... What Is the Difference Between 5W30 & 20W50 Motor Oil? You May Also Like. ... How to Mix Different Weights of Motor Oil.

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Best weight oil for a 22re motor for all wheather temps??

Best weight oil for a 22re motor for ... Older motors are not as sensitive to different viscosities, as you can see that ... I run 10w30 year round. Castrol Syn or ...

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Pep Boys can help you choose the best motor oil for ... PEAK Performance Full Synthetic Motor Oils are formulated with high ... 10W30, 10W40, 15W40, and 20W50 weights.

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Question on viscosity of motor oil.?

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For the break in period im using a autozone 10w30 motor oil! ... You can get different weights ... No synthetic oil, just all castrol. Bigvinnie Posts: ...

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Mixing Oil Viscosities - DoItYourself.com Community Forums

You can get away most of the time mixing oils of the same brand. But under no curumstances mix oils of different brands! Hey you know the Castrol Syntech blend?

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Mixing Oil Viscosities - DoItYourself.com

You can get away most of the time mixing oils of the same brand. But under no curumstances mix oils of different brands! Hey you know the Castrol Syntech blend?

What is the differnce in oil grades? 10w30 10w50, isnt it ...

... if you have a SAE 10 motor oil it will flow like a 10W at ... motor oils can also cause thinning ... on the service grades of different motor oils.