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Thread: MS3 engine oil

  1. #1
    Registered Member

    Mazdaspeed 3

    Join Date
    Jul 2017

    MS3 engine oil

    So I recently bought a mazdaspeed 3 and I've read that the owners manual calls for 5w-30 oil, however, the guy that I bought the car from has regularly used rotella t6, which is 5w-40. I was wondering if it would be fine on my engine if I were to switch back to 5w-30. The type I had in mind was pennzoil platinum

  2. #2
    Speed3 & TWO Hemis MikeHTally's Avatar

    2008.5 Speed3, 2006 Chrysler 300C, 2003 Ram 1500

    Join Date
    May 2008
    N. Florida
    Pennzoil Platinum 5W-30 is what I use. Remember, synthetic is NOT required, so you can use good ol' conventional. The change interval is the same.

    2008 1/2 CWP GT

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  3. #3
    Banned GJ-Molestor's Avatar

    2011 BMW 528i, 2015 Mazda 6, 1995 Nissan Maxima Manual

    Join Date
    Apr 2017
    shell rotella is very good stuff! i recommend you use it for sure.

    however, try not to use it EVERY oil change. it's a diesel oil, so it has a lot of detergents to keep your engine clean so it's not good to be running it over and over again.

    you can also take a look at motul or liqui moly 5w40 (more expensive, but also very good oil) but rotella is a solid choice for sure.

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