Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Please note that it is not permitted to have referral links posted in your signature. Keep these links contained in the appropriate forum. Thank you.

https://www.boards.ie/discussion/2055940817/signature-rules
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

OK to mix diff oil?

  • 07-03-2022 1:13pm
    #1
    Registered Users, Registered Users 2 Posts: 1,305 ✭✭✭


    I was changing my diff oil at the weekend, but despite my best efforts, I could not get all the oil out of the bottle and into the diff. I don't have a pump so was just trying to squeeze the oil in, but I could not get the bottle high enough for the last 100 to 200 ml to come out.

    I figured no problem I'll get more oil (Liqui Moly GL5 85W90) and finish it off today. Problem is, Ive rang around and am told it's out of stock with the suppliers (I bought the oil last year, just getting round to it now).

    I have another bottle (Eurol Translube PD 75W90) which is open and had a date from 2015 on it (came with the car). I'm at most 200ml (of 1,000 capacity) or about 5mm below the filling hole short - would I be OK to top up with this and then do another change in a month or two.

    Car is a Mercedes W123 and not LSD if that makes a difference.



Comments

  • Registered Users, Registered Users 2 Posts: 505 ✭✭✭Dirty Nails


    If you're only 5mm off the level,I wouldn't even bother.



  • Registered Users, Registered Users 2 Posts: 1,305 ✭✭✭MrCostington


    I'm just going to drain and refill with new oil this weekend for peace of mind.

    Got one of these to ensure I don't have the same problem.

    https://www.halfords.ie/tools/hand-tools/automotive-tools/laser-oil-suction-gun-121825.html



  • Posts: 468 ✭✭ [Deleted User]


    Is it really worth to replace all? Read from the bottles the ratings, certificates, etc. Anyway there is small amount the previous oil inside the diff. Until the oils is not completely different, 5mm is less than 100ml. I could save that money and top up by comparable oil. If you use the car as rally car, then story is different. Sure, oil is cheap but it does not justify the wasting.



  • Registered Users, Registered Users 2 Posts: 1,519 ✭✭✭JustJoe7240


    By all means, whatever you think but not atall neccesary IMO, If it's that close to level of the filler bolt,and it only takes a litre you're talking at most 50ml off. Could always get a bottle of the same spec oil as what's in it but I certainly wouldn't bother.



  • Registered Users, Registered Users 2 Posts: 1,305 ✭✭✭MrCostington


    Thanks all but for the sake of 8 quid I'll replace it, quick job. When I said it was 5mm low, I mean I just stick my finger in so it could be 10, although it didn't feel that much! I will need the suction tool to do the power steering fluid as my next job so that's not going to waste.



  • Advertisement
Advertisement