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  1. #1
    DeanS15's Avatar
    DeanS15 is offline My car is so clean you could eat off it.
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    servicing info (oils and quantities, sparks etc.)

    i was just wondering if anyone has come up with a preffered oil and quantity for the rear diff and gearbox, preffered spark plugs and also what engine oil and quantity would best suit a mildly tuned engine? (i'll hopefully soon have an fmic, full exhaust, intake, avcr and a couple of supporting mods that are all planned for the near future)

    im not sure when the diff oil was last changed - and on my previous car i carried out frequent trans oil changes using a little more than the specified quantity as it made a slight difference to the smoothness of the box. i cant see the harm in replacing the fluids and filters now as at least then i know they are all done and can begin a set schedule from there on.

    any help appreciated!

  2. #2
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    Heres a list ive put together for myself going by different peoples reccomendations. A few options to choose from. Feel free to adjsut as you see fit and id be happy to hear what people think.

    Engine

    Engine oil = 5W40 / 10W40 / 10W50 (3.3 Litres without Oil Filter, 3.5 Litres with)
    Silkolene Pro S 10w50
    Mobil Synt S 5w40
    Motul 300v Power 5w40
    Silkolene Pro S 5w40
    Redline High Performance Synthetic 5w-40
    Motul 300v Chrono 10w40


    Gearbox

    Gearbox Oil (API - GL4) = (2 litres)
    Redline Shockproof Lightweight
    Motul 300
    Silkolene Silktran Syn 5

    Helical Diff Oil = (API GL5) = (1.2-1.4 Litres)
    Redline Shockproof Heavy
    Motul PA-90
    Silkolene Boa 90 LS


    Brakes

    DOT 4/5.1
    Motul RBF 660
    Silkolene pro race 2000
    Motul dot 5.1 brake fluid long life


    Filters

    Z32 fuel filter (PN = 16400-Q0805 / 16400-N9600)
    Oil Filter (PN = 15208-9F600)


    Spark Plugs

    NGK BKR6EIX (Stock Boost)
    NGK BKR7EIX (At stock 1.0 Bar of Boost)
    NGK BKR8EIX (At 1.0+ Bar of Boost)
    Denso Iridium IK22 (At stock 1.0 Bar of Boost)
    Denso Iridium IK24 (At 1.0+ Bar of Boost)

  3. #3
    DeanS15's Avatar
    DeanS15 is offline My car is so clean you could eat off it.
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    thanks again jez, thats extremely helpful mate!

  4. #4
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    I personally wouldn't put Silkolene in my gearbox. From all the reports I've heard, its a pile of poo. Too fill the gearbox to 2 litres, it needs overfilling. To do this you have to fill from the top (by removing the gearlever). This reduces the notchiness of the box.

    There is absolutely no improvement in flow fitting a Z32 fuel filter over the standard one.

    Don't believe all the hype you read about engine oils. In everyday fast road driving, your engine will be just as happy with Halfrauds fully synthetic as it would with Silkolene, etc. Especially if you change it every 6k or, excessively, every 3k miles. All of the arguments for the fantastic abilities of the top name expensive fully synths only really effect you if you are on the track. If you every become an SXOC member, have a read of their oil analysis tests (conducted using member's oil samples in Ford's laboratories). It makes very interesting and enlightening reading.

  5. #5
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    Hi Mate,

    These are the oils used currently in my S15 :

    1. Engine Oil : Elf 10W-40 semi syn : changed every 5000km with Nissan Oil filter

    The rest will be changed every 20000km except for no 8 and 9 which are changed at every 40000km

    2. Gearbox Oil : Castrol LSX 90
    3. Diff Oil : Castrol LSX 90
    4. Brake Fluid : Total Dot 4
    5. Clutch Fluid : Total Dot 4
    6. Power Steering : Nissan ATF Oil
    7. Coolant : 2 litres of Total Coolant topped up with battery water
    8. Air Filter : Nissan Paper Filter (forgot the part no)
    9. Petrol Filter : Nissan Petrol Filter (forgot the part no)

    So far, no issues at all...some of my mates only swear by Motul which is bloody expensive (almost 5 times the price) but only makes <5% difference in daily driving...

    Just use a reputable brand and change the fluids often according to the service interval, you wont go wrong mate...



    Nicely,

    Is there a problem if i use GL5 rating for the gearbox? Only in the morning, from 1st to 2nd and to 3rd the shift feels notchy...how do i cure this problem?

    Is it easy to remove the gearlever from the top to overfill? How do i do it mate?
    Last edited by silviatub; 08-05-2008 at 09:30.

  6. #6
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    I agree with Nicely, better to use a cheaper (not always in quality) oil but change regulary.

    The list i provided is just some examples for people to decide for themselves, i personally will probably use the stuff my Mum can get from her work (15 or so for 5ltres trade price!!) which is called 'Planet' fully synthetic 5W40, sounds cheapo but its just rebottled Comma oil and no doubt used by all the 'Performance' garages her company supplies. I will however make sure its changed every 6K miles or every year, which ever comes first.

  7. #7
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    Just a quick question while on the subject...is a FULLY Synthetic a fully Ester based oil or does it not have to be, im not sure if its just the SEMI Synthetic oils that can vastly range in quality ? Is there anyway to tell by the grading of the oil if it is ?

  8. #8
    david Guest
    Im running denso ik20 plugs is that ok?
    So whats the best oil for a standard diff?
    Is the gear oil the same oil as the diff?

  9. #9
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    can i ask a question bout the plugs what plugs would ya use if your running 1.2 bar but would be lowering the boost to say .7 bar when the weather turns bad. what plugs would ya use ?
    Chief Wiggum: "This is Papa Bear. Put out an APB for a male suspect, driving a... car of some sort, heading in the direction of, uh, you know, that place that sells chili. Suspect is hatless. Repeat, hatless."

  10. #10
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    ik20-22 will do the trick unless the car is extensively modified. Gear oil is totally different to the diff oil. Gear oil id recommend the lightweight shockproof i used it after nicely recommended it and its amazing stuff. As for the diff oil any gl4 oil will do 80w-90
    [SIGPIC][/SIGPIC]

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