hybrid transaxle oil replacement intervals

statultra · 07-04-2008, 03:48 PM

how often do you change HV transaxle fluid, Type T-IV?

bwilson4web · 07-04-2008, 04:06 PM

I have switched to Type WS and change it on an accelerated schedule to monitor wear materials. However, it looks like I can switch to a once every other year, about 30k mile, interval.

The Type T-IV looks to need changing between 15-30k miles due to a loss of viscosity. There is a sticky with the transaxle oil study data.

Bob Wilson

FireEngineer · 07-04-2008, 09:19 PM

Remember the Type T-IV should only be used in the 2001-2003 Prius. From 2004-on it's strictly Type WS.

Wayne

patsparks · 07-04-2008, 10:04 PM

The WS oil is under $50 at Toyota dealers. I did mine at 80,000km and will do another change at 160,000km, that is 50,000 mile intervals for no reason but I think I should.

statultra · 07-05-2008, 03:44 PM

WS works on the 01-03 prius?

i have used Type T-IV on one of my 01 priuses, any dangerous with going to WS? i have like 6 quarts of the WS in my garage so that would be great

bwilson4web · 07-05-2008, 07:19 PM

Quote:

Originally Posted by statultra

WS works on the 01-03 prius?

i have used Type T-IV on one of my 01 priuses, any dangerous with going to WS? i have like 6 quarts of the WS in my garage so that would be great

It remains an experimental technique until I get another oil sample tested.

Bob Wilson

FL_Prius_Driver · 07-05-2008, 08:08 PM

Well, I'm running the same "experiment" on my 2001 as of two months ago.

krousdb · 07-05-2008, 08:19 PM

130k with no ill effects.

07-04-2008, 03:48 PM	#1
statultra uber-Senior Member Join Date: Dec 2005 Location: cape coral, FL Posts: 515 My Car: 2005 Prius Package: #9 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	hybrid transaxle oil replacement intervals how often do you change HV transaxle fluid, Type T-IV?

07-04-2008, 04:06 PM	#2
bwilson4web Senior Member Join Date: Nov 2005 Location: North Alabama Posts: 1,299 My Car: 2003 Prius Package: #1 Nominated 2 Times in 2 Posts TOTM Awards: 0 Friends: 5	Re: hybrid transaxle oil replacement intervals I have switched to Type WS and change it on an accelerated schedule to monitor wear materials. However, it looks like I can switch to a once every other year, about 30k mile, interval. The Type T-IV looks to need changing between 15-30k miles due to a loss of viscosity. There is a sticky with the transaxle oil study data. Bob Wilson

07-04-2008, 09:19 PM	#3
FireEngineer Senior Member Join Date: Oct 2004 Location: SW-Side of Chicago, IL Posts: 752 My Car: 2005 Prius Package: #6 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 3	Re: hybrid transaxle oil replacement intervals Remember the Type T-IV should only be used in the 2001-2003 Prius. From 2004-on it's strictly Type WS. Wayne

07-04-2008, 10:04 PM	#4
patsparks Uneducated bird-brain Aussie Join Date: Jul 2007 Location: Adelaide South Australia Posts: 4,383 My Car: 2004 Prius Package: Base Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 11	Re: hybrid transaxle oil replacement intervals The WS oil is under $50 at Toyota dealers. I did mine at 80,000km and will do another change at 160,000km, that is 50,000 mile intervals for no reason but I think I should.

07-05-2008, 03:44 PM	#5
statultra uber-Senior Member Join Date: Dec 2005 Location: cape coral, FL Posts: 515 My Car: 2005 Prius Package: #9 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Re: hybrid transaxle oil replacement intervals WS works on the 01-03 prius? i have used Type T-IV on one of my 01 priuses, any dangerous with going to WS? i have like 6 quarts of the WS in my garage so that would be great

07-05-2008, 08:08 PM	#7
FL_Prius_Driver Senior Member Join Date: Jun 2007 Location: Tampa Bay Posts: 1,052 My Car: 2001 Prius Package: N/A Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Re: hybrid transaxle oil replacement intervals Well, I'm running the same "experiment" on my 2001 as of two months ago.

07-05-2008, 08:19 PM	#8
krousdb Member Join Date: Jul 2005 Location: Raliegh, NC Posts: 79 My Car: 2004 Prius Package: #7 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Re: hybrid transaxle oil replacement intervals 130k with no ill effects.

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