blue cap vs green cap
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This is a discussion on blue cap vs green cap within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; i have 6500 miles on my two months old wrx. it had two oil change with M1-5W30 blue cap. when ...

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    blue cap vs green cap

    i have 6500 miles on my two months old wrx. it had two oil change with M1-5W30 blue cap.

    when should i change to green cap? since blue cap is only for new cars.

    ray
    2005 WRX Wagon Crystal Gray Metallic

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    Registered User crazycam31's Avatar
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    the green cap is (i'm pretty sure) 10W-30 (May be 5W-40, but I don't think so)... It has nothing to do with new car/old car.

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    so how long should i keep using blue cap 5W30 before changing to other type of oils?

    ray

    Quote Originally Posted by crazycam31
    the green cap is (i'm pretty sure) 10W-30 (May be 5W-40, but I don't think so)... It has nothing to do with new car/old car.
    2005 WRX Wagon Crystal Gray Metallic

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    Registered User Darrell's Avatar
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    All that stuff on the bottle about new car, old car, etc etc is just marketing.
    Mine: '05 PSM WRX 5MT Sport Wagon, Cobb AP
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    Registered User perfusionista's Avatar
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    Quote Originally Posted by WRayX
    i have 6500 miles on my two months old wrx. it had two oil change with M1-5W30 blue cap.

    when should i change to green cap? since blue cap is only for new cars.

    ray
    6500 miles is an old car?

    I seem to remember one of the oil companies advertising "old car" oil meaning >75,000 miles. I would say you can use that M1 5W-30 as long as you have your car. Ditto on the marketing comment.

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    Moderator Integra96's Avatar
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    +1, blue cap 5W-30 is fine for any mileage, regardless of what the jug says.
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