Royal Purple, Mobil 1 Oil question
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This is a discussion on Royal Purple, Mobil 1 Oil question within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Well I know there is A LOT of these posts out there and many people wont probably look at this. ...

  1. #1
    Registered User frenziedcage's Avatar
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    Royal Purple, Mobil 1 Oil question

    Well I know there is A LOT of these posts out there and many people wont probably look at this. I have been doing research for a couple hours now reading various post about oil and what weight to use as well as what oil works best with our flat four boxer engines. I just had a few 'specific' questions first off I see a lot of people running 5w-40 instead of the recommended 5w-30 that the manufacturer recommends. I have read up in the owners manual as well and was just wondering would it be okay to run 5w-40 in my engine? It's a 2002 2.0L not the 2.5L would this also be a good weight to run in the winter? It can get as cold as -30f here it's rare but can happen usually temps are around 10 to -5 F in the winter; I'm just trying to prevent oil consumption, my car will loose around 1 quart every 1k-2k miles. Upon further research I found people swear by shell Rotella T6 5W-40 they also say it helped prevent the oil consumption issue. To each is own everyone has there own opinion with oil and the oil they swear by I know this, it's all based upon opinion unless backed up by scientific proof. I am currently running royal purple and was going to switch to Mobil 1 5w-30 till I read about Mobil 1 I found more negative than positive, though don't get me wrong there were positive posts on the M1 oil.

    Thanks to anyone that is willing to answer these specific questions.

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  3. #2
    He simply abides. SD_GR's Avatar
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    Yes you can run 5W-40. Because your winters are severe you could consider 0W-40 or 0W-30 instead. I'd use the same oil year round and would find a 0W-xx that pumps in the cold and stays around enough in my motor. To do that you'll have to try some out.

    In my opinion a good 5W-40 should work anywhere in the world inhabited by humans, but my opinion is useless. Only data matter. Pick an oil and find data from similar areas as yours.
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