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Thread: 1978 R100/7 recommended Spark Plug ? / Recommended Oil - Synthetic? Regular? Brand?

  1. #16
    Registered User LDB's Avatar
    Join Date
    May 2013
    I've got friends with OTR trucks and bypass systems with over 1/4 million miles without an oil change. That said, the bypass system has two different stations and when those filters are changed at filter change intervals I believe that's about 5-6 gallons of oil out of the total 15 or so gallons in the system every 25k or so. It's been several years since I looked into them and don't remember all the details now. They send in oil for analysis each time as well. It definitely saves a huge amount of oil compared to the not uncommon "change the oil every xK miles" that the oil/auto companies preached for so long.

  2. #17
    Sir Darby Darryl Cainey's Avatar
    Join Date
    Mar 2003
    Fenwick, Ontario Canada
    I have been running Valvoline regular 20/50 for over 25 years & 400,000 miles on my RS.

    ++ on the NGK Plugs
    Ambassador BMW MOA Ontario Canada
    President Niagara BMW Riders #298
    Knights of the Roundel #333
    1977 R100RS, (Retired) 1993 R100GS (just getting started)

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