ATF & a 2009 Xc90 auto
 

Simple question, it is my intention to change the gearbox oil, I’ve had my car nearly 10 years, I think it’s due a change, I’m competent with spanner’s etc, I know which oil I need, done all my homework, do I need synthetic or non-synthetic JWS 3309 oil?

Any oil with that spec will suffice.

I’m also interested in this as just bought a 59!plate xc90 with c. 195k. I did a 30mins test drive and box seemed to change very smoothly and kick down etc but down know if / when last changed. I’ve seen the big (20l) containers of Mannol on eBay to the Js3309 spec. Is this recommended ? Also what’s the best approach on something with this mileage. Drop and replace 3-4 litres over a few days/ weeks to gradually replace or alternatively the gibbons method to flush it all out? I feel more confident doing the sump drop method and I read that this is less likely to upset the box’s learned behaviour. Is this adequate or do I need to figure out how to do the gibbons method?

This is a reputable long established firm and several on here including myself have used this JWS 3309 oil.

Good value and excellent service and a very wide product range.


https://www.smithandallan.com/produc...mission-fluid/

Yes, I've used Mannol JWS 3309 on a previous car and had no issues whatsoever.

I "think" that the Mannol is mineral oil whereas the Smith and Allan is synthetic. I have now started using synthetic only although it may be that there is no real advantage :confused_smile: but for the small extra outlay I'm sticking with it.

In addition, they are on my doorstep so I can collect rather than pay for delivery.

I rang my local Volvo dealership today, as I'm thinking about changing the transmission fluid on my car soon. They quoted me £18 for a 1L bottle & £62 for 4L! I think I'll go for the Smith & Allan brand, as many have used it & give it good reviews. The 20L drum seems like a good value option.

Sorry to ask a daft question but is this for 6 Speed transmission as well? I used 3309 on my past 5 Speed Auto V70s but my XC90 V8 is a 6 speed and there’s so little write-ups about them.

Thanks in advance,
Steve

Steve, my 2007 XC90 is a D5 with 6 speed box and the correct oil for that is JWS 3309.

I realise that yours is a 2007 V8 but am pretty certain that they share the same box.

It shouldn't be hard to check to see if this is correct.👍

Check your owner's manual & that should tell you for definite.

The Smith & Allan website linked above states JWS3309 can be used in (Quoted from the website) S60, S70, V70, XC70, C70, S80, XC90, S40, V40 & all 5-speed automatics.

I presume all the models listed have six speed transmissions, hence why '& all 5-speed automatics' is noted at the end? Or maybe its a universal fluid that can be used in 5 & 6 speed transmissions? I'm not sure about that though.

My car has a six speed transmission. Its a 2007 plate & the manual says JWS3309 should be used.