G/box: TF-80SCAWD: The Best Gearbox Oil

[NMB]

So...

I have searched the forums and I cannot find a decisive opinion on the most suitable gearbox ATF fluid to buy. All I can see is that we should use JWS3309 or ruin your gearbox.

Looking at a fully synthetic oil I have found the following oil but other than the 3309 specs I don't know whether this suits - https://www.ebay.co.uk/itm/10L-MANNO...AAAOSwjW5dOT91

Any comments on the best oil to use?

I dont want to ruin my new cars box!

Nigel.

[Bonefishblues]

Mannol has been used for ages by lots of people and I've not seen any issues reported. If it meets spec., it meets spec. If you want a 'brand' then Mobil's reassuringly expensive

[Tannaton]

From feedback from members who experimented with oils 5-6 years ago - the M&S version would be this : AMSOIL Signature Series Multi-Vehicle Synthetic Automatic Transmission Fluid (ATF).

But you won't tell the difference, for a fixed investment I would stick with Mannol and change it more often (50k ?)

[Kev0607]

Check your owner's manual to confirm the exact transmission fluid you need, as the XC90's transmission fluid spec did change at some point from JWS3309 to JWS3324 or AW-1 around 2012, if I recall correctly. So basically, if your car is 2011 or older, it'll be JWS3309 that you need. If its 2012 or newer, it'll be JWS3324 or AW-1. Double check that though in your owner's manual to be safe.

If your car takes JWS3309, Smith & Allen is another option:

https://www.smithandallan.com/produc...-aisin-warner/

[NMB]

Brilliant - thank you all for your replies.

I'm all for spending on quality oils as I now stick to the Liqui Moli 0/30 engine oil as it has rave reviews and seems to leave my engine running nicely. However, i also dont like the idea of spending £120 on Volvo oil for the gearbox that is the same as a better value product.

I'm going to buy the 20 littres Mannol oil and run and flush it 4 times to freshen up the system.

Keeping the fluids in good quality is important and the last thing i need is a failed gearbox ontop of my T6 slipping gearbox which needs sorting!

Nigel.

[jshack]

I used the Mannol jws3309 in my 2010 car with 196k miles. Used the drop and fill method 4 times and will do again soon. I’ve driven several thousand miles since and the gearbox is working perfectly - that said it was fine pre-change. From memory only about 2.5 litres Came out each drop. I’ve got Vida now so will check the levels
Properly - I just put back in exactly what came out. Thanks James

[eternal optimist]

Mannol user here; XC70 with the AW50/55 box using JWS3309. Taken it from 125k to 178k in about 30 months. I swap out 6 litres every 8 to 10k when I change the engine oil.

[Aus2012XC60]

Given the TF-80SC is a Toyota (Aisin) box, I'd suggest Automatic Transmission Fluid Type T-IV (Specification: JWS 3309).

It's well priced at Toyota dealers worldwide.

[Bonefishblues]

Originally Posted by Aus2012XC60

Given the TF-80SC is a Toyota (Aisin) box, I'd suggest Automatic Transmission Fluid Type T-IV (Specification: JWS 3309).

It's well priced at Toyota dealers worldwide.

As correctly stated above, c2012 the spec changed away from 3309 to AW1/3324, so TF80=3309 isn't invariable.

[Tannaton]

Volvo changed the fluid spec for their cars using the TF80 in MY 2011 I believe from 3309 to 3324. However they didn't change the spec for the XC90 using the same gearbox until MY2013 for some reason.

Ultimately though - it's irrelevant as a pre 2011 box will quite happily run on 3324 and vice versa... the later spec i slightly lower viscosity for economy reasons. My only counsel would be not to mix them - if you do change spec you should do a full flush.

I strongly suspect (rather than know) the XC90 changed later due to the box being slightly less reliable in that platform as a result of its significant extra weight and hence Volvo stuck with the higher viscosity oil.