ddmd
01-05-2016, 07:16 PM
Pretty new to this forum. I have a 2000 V70XC with 180,000 miles. The ATF has been flushed at a Volvo dealer at 35, 70, 110, and 145K
with Dexron III, is still clean and pink, and shifts smoothly. I also just purchased a 1999 V70XC with 57,000 miles privately, with a history of a
transmission flush at 30,000 miles with an unknown ATF(there is no paperwork but a sticker from a Volvo dealer in the engine compartment
"documents" an ATF flush at 30K and it's also recorded on the CARFAX). It shifts smoothly and is reddish-brown and smells OK.
I thought I would would perform an ATF flush on both so I've read a lot of forum info on the transmission flush and ATF type for the AW 50-42 4-spd transmission.
(same trans in both cars as per the owner's manual).
As I understand it(and please correct me if I'm wrong):
1. Dexron III is called for in the owner’s manual for the AW 50-42.
2. A Volvo service bulletin calls for the use of JWS 3309 Spec ATF for "hard lockup engagement/disengagement in the AW 50-42 transmissions".
Doing a search for that service bulletin (http://workshop-manuals.com/volvo/s70/l5-2.4l_vin_61_b5244s/engine_cooling_and_exhaust/cooling_system/radiator/component_information/technical_service_bulletins/all_technical_service_bulletins_for_radiator/4430029/may/00/a/t_hard_lockup_engagement/disengagement/) also references using Dexron IIIG Spec ATF. Are JWS 3309 and Dexron III G the same thing?
3. I've read that Dexron III and JWS 3309 should not be mixed, so a complete flush (16 qts) would be needed to change from Dexron III to JWS 3309 or Dexron III G.
My questions:
1. On the 2000 XC, since I haven’t had transmission lockup issues, should I just continue using
Dexron III since it’s been used with all of the previous flushes?
2. On the 1999, I’ll have to do a full flush since the previous fluid used is unknown. Again, Dex III or JWS 3309?
The advice from 3 Volvo dealers with these questions (sheesh):
Dealer 1. We only use Dex III (not aware of the bulletin)
Dealer 2. We only use Dex III (hadn’t heard of the JWS3309 spec)
Dealer 3. We perform a full flush with 3309 on all of these transmissions,
whether or not the harsh lockup exists.
Sorry for the long winded post. Thanks in advance for your thoughts/advice.
with Dexron III, is still clean and pink, and shifts smoothly. I also just purchased a 1999 V70XC with 57,000 miles privately, with a history of a
transmission flush at 30,000 miles with an unknown ATF(there is no paperwork but a sticker from a Volvo dealer in the engine compartment
"documents" an ATF flush at 30K and it's also recorded on the CARFAX). It shifts smoothly and is reddish-brown and smells OK.
I thought I would would perform an ATF flush on both so I've read a lot of forum info on the transmission flush and ATF type for the AW 50-42 4-spd transmission.
(same trans in both cars as per the owner's manual).
As I understand it(and please correct me if I'm wrong):
1. Dexron III is called for in the owner’s manual for the AW 50-42.
2. A Volvo service bulletin calls for the use of JWS 3309 Spec ATF for "hard lockup engagement/disengagement in the AW 50-42 transmissions".
Doing a search for that service bulletin (http://workshop-manuals.com/volvo/s70/l5-2.4l_vin_61_b5244s/engine_cooling_and_exhaust/cooling_system/radiator/component_information/technical_service_bulletins/all_technical_service_bulletins_for_radiator/4430029/may/00/a/t_hard_lockup_engagement/disengagement/) also references using Dexron IIIG Spec ATF. Are JWS 3309 and Dexron III G the same thing?
3. I've read that Dexron III and JWS 3309 should not be mixed, so a complete flush (16 qts) would be needed to change from Dexron III to JWS 3309 or Dexron III G.
My questions:
1. On the 2000 XC, since I haven’t had transmission lockup issues, should I just continue using
Dexron III since it’s been used with all of the previous flushes?
2. On the 1999, I’ll have to do a full flush since the previous fluid used is unknown. Again, Dex III or JWS 3309?
The advice from 3 Volvo dealers with these questions (sheesh):
Dealer 1. We only use Dex III (not aware of the bulletin)
Dealer 2. We only use Dex III (hadn’t heard of the JWS3309 spec)
Dealer 3. We perform a full flush with 3309 on all of these transmissions,
whether or not the harsh lockup exists.
Sorry for the long winded post. Thanks in advance for your thoughts/advice.