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Thread: Weight oil.

  1. #1
    Join Date
    Sep 2012

    Default Weight oil.

    2006 XC70. I use Mobil 1, Summer is approaching here in NY. Local suppliers carry 10-30, 5-30. What is the recommendations for this year? 90k. I’ve been using the 10-40 in summer.

  2. #2
    Join Date
    Oct 2003
    Michigan, USA


    Mobil 1 European Car Formula 0W-40. (Mobil 1 FS) Walmart carries it.

    Shell Helix Ultra 0W-40 is another. I've gotten that at Walmart too, when they were out of Mobil 1, though didn't see it there the last time.
    '04 XC70, Ash Gold / Taupe, Premium, Touring, Tinted Rear Glass, Rear Skyddsplåt, Wing Profile Load Bars, USA Spec 11,
    StonGard Light Protection, Yokohama YK740 GTXs, Meyle HD Sway Bar Links, ipd HD TCV, subframe & top brace poly bushing inserts,
    TitaniumTim XC Cup-holder Coasters.

  3. #3
    Join Date
    Aug 2007


    +1 Mobil 1 0-W40. 202k miles and I burn around a qt every 5-6kmiles. My view is I want to get oil to those Turbocharger bearings as quickly as possible no matter what the season....2007, XC 70
    2020 Subaru Outback XT - Pearl White Loaded-huge improvement over 2013!
    1955 Ford F-250 - 223 IL6, 4 Speed with Granny Gear, 109 HP, 4.88 Rear
    2017 Maserati Ghibli - Blu Emozione - GONE!
    2013 2013 Subaru Outback - charcoal Grey, Eyesight Collision Avoidance 110k miles
    2007 2007 XC70, Barents Blue, Charcoal Leather 215k miles
    1978 Bitchin' Chevrolet Z28 Camaro - Fuel Injected 383ci SB Dyno'd at 452HP 462FT/LBs Torque
    My build thread:

  4. #4
    Join Date
    Jul 2010
    Rugby UK


    Yhey, I go 0-40 too (but Shell Helix) for same reason.

  5. #5
    Join Date
    Mar 2018


    I almost made the switch to M1 EF 0W-40 vs factory recommended M1 5W-30.

    If you look around, most of the European cars (especially with turbos) are running M1 EF 0W-40 and this also has the special Porsche seal of approval.

    IMO either way would be fine... The more I think about it, the more convinced I am to switch to M1 EF the next oil service.

  6. #6
    Join Date
    Feb 2010
    Virginia Beach


    I use the Mobil 1 0W40 in Volvos. Works great.

    Here is an example of one of my Used Oil Analyses:

    I talked a lot about oil in a previous thread on this forum.


    Use an oil that is designed for a long drain interval. It must meet ACEA specs and it should be synthetic. I recommended Mobil 1 0w40 back then, too...
    Current Fleet:
    2016 Tundra Crewmax 4WD 1794
    2005 MB S600 (100K, Michelin AS3+, M1 0W40)
    2002 V70-XC (258K, Castrol Edge 0W40)
    2002 V70-T5 (208K, IPD bars, Bilsteins)
    2001 V70-T5 (92K)
    1932 Packard Sedan (straight 8, dual sidemounts, original paint and interior, Shell Rotella 15W40)

  7. #7


    Lots of oil test here that are pretty interesting to watch -

    Consider Walmart SuperTech and Amazon Basics

    I've read more than I care to remember on the Land Rover forums about all of this and these tests make things quite interesting.

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