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Thread: Oil???

  1. #1
    Join Date
    Jul 2015
    Posts
    41

    Default Oil???

    Just thought I'd throw this out...What's everyone running for oil in a Cross Flow that doesn't get raced, & only driven hard occasionally.
    Thanks, Kato

  2. #2
    Join Date
    Jan 2020
    Posts
    70

    Default

    The previous owner of my car recommended PennGrade SAE 20W-40 Partial Synthetic.
    1987 Caterham 1700 Supersprint
    2002 Porsche Boxster
    2004 Porsche Boxster S
    1941 Dodge Luxury Liner
    2009 Mercedes CLK 350 Cabriolet
    2017 Chevrolet Volt

  3. #3
    Join Date
    Oct 2007
    Location
    Menlo Park CA
    Posts
    74

    Default

    I use Castrol 20W-50, with an additive from Moss Motors, "ZDD Plus" as a lead replacement.

    https://mossmotors.com/zddplus-engine-oil-additive

    My car is a 1990 Caterham with the stock Caterham X-Flow 1700 Super Sprint.

  4. #4
    Join Date
    Nov 2010
    Location
    New Jersey
    Posts
    228

    Default

    I’ve been using Valvoline VR1 Racing Oil 20w50. It’s a High Zinc oil

    https://www.valvoline.com/our-produc...vr1-racing-oil
    1985 Caterham Super Seven
    1952 MG TD
    1991 Lotus Elan
    2017 MX5 RF
    2018 Audi A5 Sportback
    2014 BMW X1

  5. #5
    Join Date
    Jan 2006
    Location
    Seattle-ish
    Posts
    1,273

    Default

    I've heard a lot of good things about Driven Racing Oil HR which was designed for older engines that are driven intermittently. It's available in both dyno and synthetic. I have some of the dyno oil in the garage ready to go in the Elan as soon as I have time for an oil change.

    https://tech.drivenracingoil.com/wha...rod-motor-oil/

    -John
    '95 Westfield SEiW w/2.0L Duratec
    '68 Lotus Elan FHC
    '91 Miata w/Flyin Miata suspension & brakes
    '95 Porsche 993 C2
    '86 Porsche 944 turbo (neglected project car)
    Throttle Steer

  6. #6
    Join Date
    Oct 2019
    Location
    SE NC
    Posts
    45

    Default

    Brad Penn and Redline are the stateside recommendations I've gotten over the years for my Elan, both have plenty of zddp and are considered top end. Both are expensive, but I figure it is worth it for these old engines. I'm currently using Redline 20W50 for the twink in my Elan, planning the same for the Seven (pre-crossflow).
    Henry
    1965 Seven S2
    1969 Elan S4

  7. #7
    Join Date
    Feb 2012
    Location
    Roswell GA
    Posts
    947

    Default

    I've used Castrol GTX 10w-40 and/or oil recomended for diesel motors which have zinc additives.
    In my application, having the proper oil level is important. The motor leaks some.
    I'm a goldylocks driver, as long as its not too hot or not too cold I'll take the car out, and its kept inside a conditioned garage. So the oil isn't getting much of a workout.
    Life happens while you're making other plans
    1995 Caterham Crossflow RHD
    1990 Miata
    2007 GMC Sierra WT
    2013 Mini (Her's)
    2014 Outback
    JOHN DEERE D130

  8. #8
    Join Date
    Jul 2015
    Posts
    41

    Default

    Many thanks to all for your responses. This gives me a lot to think about, but they are all of the same vein. I've got a dry sump on my car which means buying 7 quarts, so I just wanted to be right the first time. Wish I could still get Castrol XLR 20w-50 like I ran in my Mini; but that was a long time ago.
    Cheers, Kato

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