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I was wondering what type of oil I should get for my 2006 Polaris Hawkeye 300 CC. I read online that OW-40 was good for the changes in temperature from summer to winter. However, my owners manual says OW-50. I was just wondering what would be best. Thanks you for replying! :veryhappy:
 

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Being that it is air cooled, you will want a 50W oil during the warm months.

If you can find a full syn, stick with 0w50. The 50e is the hot temp.
 

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On our 2002 325 air cooled four stroke Polaris requested the use of 0W-40 and currently are running Mobil 1 10W-40 High Mileage that is rated High Temp motor oil and it will see 300F sometimes.

Some say 50 quickly shears down to 40 but I have not yet seen any research supporting that thought. See people running from 0W-40 to 20W-50 which could be OK depending on where you lived in HI or on the Arctic Circle. :)
 

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Agreed, being air cooled you want a heavier oil at operating temp but most 50 weight oils shear quickly to a 40 so don't lose any sleep. If you can find a 0W50 that would be best but 0W40 will work. Full synthetic as noted by Will.
 
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