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Thread: Latest fluid recommendations

Discuss the Austin Healey Sprite and the MG Midget. Two different but similar cars sometimes referred to collectively as the Spridget.

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    Darth Vader Rut's Avatar
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    Latest fluid recommendations

    We are about to button up this Bugeye/Datsun project and I recommended VR1 20w50 for the engine oil and I have some leftover Brad Penn GL4 for the diff, but whatís the latest on lube for the Datsun 5 speed? I see a variety of suggested products for both the tranny and diff, but I would like the latest scoop.
    Thanks, Rut
    Rut, '60 Bugeye, '70 MGB, '62 TR4, '66 TR4a IRS, '67 TR4a IRS, '68 TR4a IRS, '72 TR6

    When I went to school, they asked me what I wanted to be when I grew up. I wrote down 'happy'. They told me I didn't understand the assignment, and I told them they didn't understand life. John Lennon


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    Jedi Trainee Joe Schlosser's Avatar
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    Re: Latest fluid recommendations

    Redline MT 90. IMHO best for all gear boxes
    Joe Schlosser
    SCCA National License, Retired
    60 Bugeye, since 1966
    SCCA FP, sold but not forgotten

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    Darth Vader Rut's Avatar
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    Re: Latest fluid recommendations

    Joe,
    For both the tranny and rear end?
    thanks, Rut
    Rut, '60 Bugeye, '70 MGB, '62 TR4, '66 TR4a IRS, '67 TR4a IRS, '68 TR4a IRS, '72 TR6

    When I went to school, they asked me what I wanted to be when I grew up. I wrote down 'happy'. They told me I didn't understand the assignment, and I told them they didn't understand life. John Lennon


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    Jedi Trainee Joe Schlosser's Avatar
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    Re: Latest fluid recommendations

    Rut
    I never have used it in the reat end only gearboc
    The Name is confusing as it is not 90 weight grear oil.
    The container says transmissions
    Joe Schlosser
    SCCA National License, Retired
    60 Bugeye, since 1966
    SCCA FP, sold but not forgotten

  5. #5
    Jedi Knight
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    Re: Latest fluid recommendations

    I use 1.2 litres Red Line MT-90-GL-4 in the Datsun 5 speed transmission (also the Spidget 4 speed), and Red Line 75W90 GL-5 gear oil in the Spridget differential. For the steering rack, it's Royal Purple 75W-140, and Castrol ATF for Armstrong shocks (per AH Spares). For the engine, I've been using Castrol Edge but may switch to Rotella 15-40 T4; we use Valvoline VR-1 in a turbocharged BMW 2.5 litre that is stuffed into a 1972 2002. All of these (plus others such as Mobil 1 15-50) have the magic minimum 1200 ppm or higher of zddp (zinc dialkyl dithiophosphate). Red Line seems to have a very positive reputation for gears; I don't remember why I picked Royal Purple for the steering rack. I think that trying to understand and determine the optimum oil types and change frequencies for older vehicles is akin to Sisyphus, eternally rolling his rock up that hill. Doug
    1959 pristine 948 cc Bug-Eye; DCOE, 5 speed; bought 1971
    1960 BE bought 1971 & stored since; body tub restored and reassembling (1275; etc.)
    1962 AH 3000 BJ7; 3rd owner (1982?); in shop Oct. 2015 for paint job - home soon!
    1962 VW Meyers Manx clone dune buggy; stripped last winter and being reassembled
    1969 Kawasaki 500 H1 Triple, orig. owner; stored since 1973, but runs again! 1999 Buell S3

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    Darth Vader Rut's Avatar
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    Re: Latest fluid recommendations

    Doug,
    Thanks a bunch for all the recommendations!
    Rut
    Rut, '60 Bugeye, '70 MGB, '62 TR4, '66 TR4a IRS, '67 TR4a IRS, '68 TR4a IRS, '72 TR6

    When I went to school, they asked me what I wanted to be when I grew up. I wrote down 'happy'. They told me I didn't understand the assignment, and I told them they didn't understand life. John Lennon


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