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Old 06-19-2009, 03:58 PM   #11
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well, to each his own.

my mechanic told a story once about an auto tranny that was run on amsoil for ~250,000 miles. anyway, just for kicks(he does this kind of thing), it was pulled and opened it up.

he expected to find very little wear in the metal parts, but he also found that the seals and bands looked as tho they just came from the factory!

not verifiable, but i'd believe the word of some over the claimed facts of others.
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Old 06-19-2009, 04:04 PM   #12
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BTW, got a question...

my wife's AT is leaking fluid. it is coming from around the pan, as little as it is. i tried tightening the pan bolts to no avail. anyway, it shifts fine, so could this be a pump gasket leak?

i got a quote for pulling the tranny, replace gasket, and refill w/ said amsoil for $760.50. so...

could this be my problem? and should i have this done(sooner rather than later)?
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Old 06-19-2009, 04:15 PM   #13
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I'm no expert but it sounds like the pan gasket is the leaky one.
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Old 06-19-2009, 06:28 PM   #14
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Yeah, if you're willing to do the work yourself, a pan gasket and some ATF shouldn't be that expensive.
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Old 06-19-2009, 07:23 PM   #15
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Bobc455,
You want low viscosity transmission fluid because that is what the Toyota engineers specify. That is what Toyota WS transmission fluid is. Low viscosity.

Pretty sure because I only glanced....A New Porsche Cayenne S at Costco. Transmission from Japan. Go to a dealer and look for yourself.
Why not? Toyota diesel engines are in American pickups. Not Tundra for some weird reason.
The point is that Japan seems to be the pre-eminent transmission builder at this time. Everything in my Tundra is made in North America, but the tranny is from Nippon.



Engine and transmission oil and extended drain times:

1. I won't make too much effort to figure out how to post my lab results for the simple reason that the skeptics won't accept it anyway.

2. Changing the full flow filter at the recommended times and using by-pass filtration, which cleans down to one micron, allows for long change times for these reasons;
a) the filtered oil is analytically clean.
b) changing the spin-on and adding oil to top off brings the additive package of the oil up to specifications.
c) we always use oil analysis and base changes on the report.


Transmission tear-down story.
My wife's 1988 Honda Prelude SI with 4-wheel steering and an automatic transmission got to where it was a 2-speed. First then fourth.
The clutches were down to the metal...all four gears. After only 35,000 miles. Using Honda ATF.
I insisted the shop install Amsoil ATF and now the car has gone about 135,000 miles and the lab report says the Amsoil is fine for continued use.


Here's a thought;
Before tossing out your Mobil 1 or whatever motor oil you use, at 5,000 miles......
send a sample for oil analysis. If it is okay.....let us know.
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06 4.7 Tundra replaced a 98 Dakota 3.9.
623,000 miles on original engine and transmission, using Amsoil by-pass filters and lubrication.
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Old 06-19-2009, 07:31 PM   #16
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Bowtieguy,

Iffin you can tighten the bolts, you can get dirty and replace the gasket and fluid.
1 beer job.
Replace the transmission filter when you have the pan off.
Simplest is to clean the pan really well, use brake cleaner to finish and disinfect the gasket seat, then use the tube Black gasket maker and make your own.
Be sure to encircle the bolt holes.
install the pan with the bolts finger tight then let it sit for the specified time for the gasket to stiffen a bit then tighten er up, but not too much.

When you refill the trannie...remember that you have only replaced half the fluid as the rest is in the torque converter, and be very sure to measure the level the way the manual says to, so you don't get a bum reading.

Do the above and you won't be 'that guy' in the STP commercials.
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I use and talk about, but don't sell Amsoil.
Who is shatto?
06 4.7 Tundra replaced a 98 Dakota 3.9.
623,000 miles on original engine and transmission, using Amsoil by-pass filters and lubrication.
+Everybody knows something you don't know.
+Artists prove truth can be in forms you don't understand.

Low-Risk Option Trader
Retired Pro-Hunter featured in; 'African Hunter', by James R. Mellon III. and listed in; Rowland Ward's Records of Big Game.
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Old 06-20-2009, 04:15 AM   #17
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Quote:
Originally Posted by shatto View Post
Toyota diesel engines are in American pickups.
Which American pickup has a Toyota diesel engine?
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Old 06-20-2009, 07:46 AM   #18
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I'm quite sure the Chevy/GMC Duramax is a Mitsubishi...
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Old 06-20-2009, 09:16 AM   #19
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Duramax is GM-Isuzu, not GM-Toyota and always has been, AFAIK.

http://en.wikipedia.org/wiki/GM_Duramax_engine doesn't mention any plans by GM to partner with Toyota on it.
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Old 06-20-2009, 11:21 AM   #20
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Duramax
Made by Hino, truck division of Toyota.

NOT!

I checked, and the Duramax is a joint venture between Isuzu and GM.

I always presumed Toyota made diesels for small trucks for the overseas market. They probably do but google is set up to edit searches to the locale of the question, so we get North American links first. When I lived in Africa, in the 60's, diesel Jeeps were available, just like Land Rovers, but they didn't sell many, probably because you could always find used parts for the gas models.
Oh, well. There is this:
http://rav4world.com/index/diesel.html
http://forums.motortrend.com/70/6543...med/index.html
http://www.autobloggreen.com/2006/11...ybrid-in-2010/
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I use and talk about, but don't sell Amsoil.
Who is shatto?
06 4.7 Tundra replaced a 98 Dakota 3.9.
623,000 miles on original engine and transmission, using Amsoil by-pass filters and lubrication.
+Everybody knows something you don't know.
+Artists prove truth can be in forms you don't understand.

Low-Risk Option Trader
Retired Pro-Hunter featured in; 'African Hunter', by James R. Mellon III. and listed in; Rowland Ward's Records of Big Game.
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