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Thread: Oils

  1. #1
    Off my bleeding rocker ! symon's Avatar
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    Default Oils

    What oils should I use in the engine, gearbox & differential on my 76 260Z 5 speed. Ive only had the car a week & Ive not yet received the worshop manual Ive ordered.
    Perfect garage !
    65 Nissan Silvia being restored
    76 260Z 2 seater euro spec 245 Bhp and flys
    93 R32 Skyline gtr 480bhp monster.

  2. #2
    Works aholic Z-point's Avatar
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    you've got a PM!


    "Colourful fearsome cars were roaring in the woods again.
    The sight and sound of the mighty Datsun 240Z will long be savoured".

  3. #3
    HLS30165540
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    Default oils

    Depending on how many miles and the climate. But in warm temps a 10-40 or 10-30 will be good for the engine. For the tranny or diff. Use 80W gear oil.
    The 1973 240Z 165540 Slightly modified. L28, 5sp, cam, headers, MSD 6AL, power windows, power door locks, leather seats, custom this and custom that.

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    beandip beandip's Avatar
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    You will most likely get 50 different openions . Here is mine Quaker State or Casterol GTX in either 10w 30 or 10or 20w40 . Depending on the temp and miles on the engine .

  5. #5
    terminally addicted
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    I'll second Castrol GTX 10W-30. Worked very well in my '72. Unless you have a newly rebuilt motor, I would stay away from synthetics to avoid any leaks.

    Now lets hear about the tranny, and diff. Come on fellas. Never did open those up on mine.
    Greg
    Four Forty-Six Photography
    Off my meds and wanting a Z again.
    Previous owner of a '72 which the wife made me get rid of....Got rid of her, now I want the car back!!

  6. #6
    Off my bleeding rocker ! symon's Avatar
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    Thanks Guys,
    Ill try the Castrol GTX 10/30 for the motor & 80w for everything else. Ill report back to say how I get on.
    Perfect garage !
    65 Nissan Silvia being restored
    76 260Z 2 seater euro spec 245 Bhp and flys
    93 R32 Skyline gtr 480bhp monster.

  7. #7
    Registered User BillD's Avatar
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    Default Hi Milage Formulations

    Does anybody have any information about the value of the oils that are advertised as being formulated for high milage engines? I'm curious if this is the newest snake oil additive.
    1973 240z L28 engine
    1985 300zx
    1959 AH 100-6 289 v8
    1947 Ford 2N/8N hybrid (SN 8N0268)
    Kawi ZX11, Ural
    GaZClub #676

  8. #8
    beandip beandip's Avatar
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    I don't know about the hi milage oils . I , like you think it is just an addvertising thing. I did quite a bit of surching on the web and found a site that went in depth on the componets found in the different brands of oil , they covered about ten different ones. They went into the ash content and all sorts of different things and raited them for different applicatinons. Under load , high RPMs Heat, cold , how they were for forming sludge , all sorts of tests were made. Now I had

    been using Quaker state oil for the past 40+ yrs and was pleased to see that it scored in the top two . Quaker and Castrol GTX were almost exactly the same in all reguards and rated the top two. I have since changed to GTX because I can buy it at Cosco , and with four engines to maintain the price brake helps some.

  9. #9
    Registered User tanny's Avatar
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    I wonder if they just add a little of that STP honey to regular oil to make those "high mileage oils"? Probably some promotional scam as mentioned above.

  10. #10
    Off my bleeding rocker ! symon's Avatar
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    Im not expert on oils but I have always put in a quality oil of the type specified buy the manufacturers. At least the Castrol GTX I normally used is well rated on that test, it also has another advantage that when you strip the engine down it is all nice & clean with no gunge.
    Heres my thought on oils for high milage engines : - If the engine has done 100.000s of miles & the oil pressure is down, it burns oil, & make a hell of a noise, no oil is going to solve that. You just got to bite the bullet & strip the engine down & fix it.
    Perfect garage !
    65 Nissan Silvia being restored
    76 260Z 2 seater euro spec 245 Bhp and flys
    93 R32 Skyline gtr 480bhp monster.

  11. #11
    Registered User zorro's Avatar
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    I have found Penrite to be really good depending on how much work your engine has done HPR15 is good if it is rebuilt or low on miles where as if it has a slight oil consumption problem HPR 30 is better.....

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