hadyn Posted February 15, 2007 Share Posted February 15, 2007 Is it bad to do autobox fluid changes before schedule on a tt? Ive read that a complete flush too often is bad news, but is changing the fluid (draining the sump) before schedule or even after a few 1000 miles not a good idea? Quote Link to comment Share on other sites More sharing options...
RedM Posted February 15, 2007 Share Posted February 15, 2007 I think you can change it too often. I think it's an every two years job. Quote Link to comment Share on other sites More sharing options...
hadyn Posted February 15, 2007 Author Share Posted February 15, 2007 I know mate, ive read that too many complete flushes is bad news due to the amount of additives being introduced to the box. You got that new box fitted yet mate? Quote Link to comment Share on other sites More sharing options...
hadyn Posted February 16, 2007 Author Share Posted February 16, 2007 bump Quote Link to comment Share on other sites More sharing options...
SUPRASUZUKI Posted February 16, 2007 Share Posted February 16, 2007 Just seen this on SF while looking into track day cooling - http://www.supraforums.com/forum/showthread.php?s=&threadid=120309 He talks about changing fluid at 7,500 - 10,000 miles rather than Toyota intervals of 15,000!! Seems to contradict the 'don't change too often' views. I don't know, now I'm totally confused:search: Quote Link to comment Share on other sites More sharing options...
silvershark44 Posted February 16, 2007 Share Posted February 16, 2007 I heard that your not supposed to do it unless it really needs doing. I think your safer just topping up, i think its quite difficult to do a properly full flush anyway as you can only change so much easily. Quote Link to comment Share on other sites More sharing options...
RedM Posted February 16, 2007 Share Posted February 16, 2007 Hadyn, Still not had it fitted yet. My mechanic is really booked up and working all night tonight to finish a job. The box is getting worse. It's starting to hang a gear change points and if I try for a burst of speed going uphill it slips like a slippy thing. Quote Link to comment Share on other sites More sharing options...
Scooter Posted February 16, 2007 Share Posted February 16, 2007 He talks about changing fluid at 7,500 - 10,000 miles rather than Toyota intervals of 15,000!! Seems to contradict the 'don't change too often' views. I don't know, now I'm totally confused:search: I think you should just change the 2l's that comes out from the sump on every, or everyother, engine oil change you do. The complete change of the fluid is what is not 100% recommended and certainly not often..........its costly and unnecessary even if it doesn't do any harm........ Quote Link to comment Share on other sites More sharing options...
hadyn Posted February 16, 2007 Author Share Posted February 16, 2007 1.8 litres isnt it? So a sump fluid change is at say 5k intervals is a good thing? Quote Link to comment Share on other sites More sharing options...
Scooter Posted February 16, 2007 Share Posted February 16, 2007 1.8 litres isnt it? So a sump fluid change is at say 5k intervals is a good thing? 1.8L - 2l who's counting If your fluid on the dipstick isn't bright and shiney red then i'd so a few changes at this rate would be fine..........but i'm pretty sure the interval is a bit longer per toyota........ Quote Link to comment Share on other sites More sharing options...
SUPRASUZUKI Posted February 16, 2007 Share Posted February 16, 2007 I think you should just change the 2l's that comes out from the sump on every, or everyother, engine oil change you do. The complete change of the fluid is what is not 100% recommended and certainly not often..........its costly and unnecessary even if it doesn't do any harm........ To be honest, if (and it's still an if) Toyota say full change at 15,000 I'm tempted to stick to that (even though it sounds excessive). After all, they should know. I shall keep digging I think. Quote Link to comment Share on other sites More sharing options...
Scooter Posted February 16, 2007 Share Posted February 16, 2007 To be honest, if (and it's still an if) Toyota say full change at 15,000 I'm tempted to stick to that (even though it sounds excessive). After all, they should know. I shall keep digging I think. if you can find a definitive toyota recommendation i'd stick to that too Quote Link to comment Share on other sites More sharing options...
SUPRASUZUKI Posted February 16, 2007 Share Posted February 16, 2007 Just found this on my maintenance CD. It covers loads of Toyota models, so I've taken these out and just left the Supra detail. Elsewhere it suggests LSD oil changes at 30k miles, so that ties up (sort of) with the 'sevre conditions' frequency of 15k miles mentioned here. QUOTE "TRANSMISSION SERVICING - A/T 1996 Toyota Supra AUTOMATIC TRANSMISSION SERVICING APPLICATION AUTOMATIC TRANSMISSION APPLICATIONS Model Transmission/Transaxle Supra .......................................... (1) A340E (1) - Transmission in turbo models contains a different electronic control system than the non-turbo models. (2) - Applies only to Canada models. LUBRICATION SERVICE INTERVALS Severe Service (All Models) Under severe conditions such as trailer towing, police, taxi, local delivery service or operating under dusty conditions, replace transmission fluid and differential fluid every 15,000 miles or 12 months. Supra, Check transmission fluid level every 15,000 miles or 24 months. Normal operating conditions service interval is not available" UNQUOTE So I guess it's up to the user to decide whether they are 'severe' users or not. Quote Link to comment Share on other sites More sharing options...
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