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Post by vorsath on Apr 2, 2010 1:21:40 GMT -5
Saving $3-4 a quart on Trans Fluid isn't worth the risk of a tranny. Seriously... it's a pain, but get the right fluid. Trans problems just aren't worth it. lol, that's what I'm trying to do, and I think I have it, but not sure
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Post by ercp98 on Apr 11, 2010 22:36:58 GMT -5
just to add more confusion or good insight on this subject , i have a 1998 montero (full size) with aw3 code for the trans which i believe makes it aisin warner. i ended up using spIII from mitsubishi when i recently did my trans flush. i was getting the shudder at light throttle at 30 to 40 mph. as of now the shudder is gone but i am still observing it. i was told to use the dex II trans fluid since it calls for it . but i can't find dex II anymore. the next best thing suggested was valvoline maxlife dex / merc with the addition of lubeguard (black for montero). i will switch to the dex/merc and lubeguard if i feel the transmission shuddering again. as an extra info, i called the local mitsu dealership here for a trans flush. after telling them what year montero i have, they basically told me that the mitsu spIII is what they will used on it for the trans flush regardless of what the older owners manual states. so that is why i used the mitsu spIII instread of the valvoline dex /merc instead. only time will tell for me if this decision was the correct one.
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Post by MitsuMontySp99 on Apr 15, 2010 13:45:42 GMT -5
I've been running on Valvoline Maxlife for my 99 Monty Sport and never had problems at all. I had to flush my tranny around 3 years ago but all the local mitsu dealerships here in NY city didn't have SPIII's sold in quart bottles and was told to wait for 4 weeks for the order. They only had those available in "drum" which has about 55 gallons. I couldn't wait, winter was coming and I needed a replacement tranny fluid. I was debating between Mobil 1 ATF vs MaxLife ATF and I chose Maxlife because of recommendations of being the next compatible multi ATF fluid to SPIII, per mitsu and chrysler owners who used them. I was also told if I were to use Mobil 1 ATF, I'd rather wait for the availability of the SPIII's due to Mobil 1 ATF's expensive price.
After hitting more than the 30k ++ tranny maintenance mark due to my negligence, I bought 3 gallons of maxlife atf from amazon ($14.60/gal) and Wix #58710 filter ($15.69) from Rockauto, redid the flush again over the weekend. I didn't do the "drain and fill" but a "complete flush" and filter replacement. The "drain and fill" process only discharges approximately 2 quarts of dirty fluid. Upon further inspection of the tranny pan magnets after having the maxlife experience, very minimal metal shavings were observed which was normal.
I also added Lucas Oil Transmission Fix as an insurance before I did the initial pour of the Maxlife. So far, my tranny shifts smooth again specially when downshifting. I expect my tranny to hit at least 500K miles and I intend to keep my Montero Sport until Mistubishi decides to bring them back here in the US again.
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Post by redcentinela on Apr 19, 2010 10:02:30 GMT -5
I have 1999 Montero Sport. Apparently that year was the transition year. I have a an Imported Pasenger Cars, light trucks and Vans repair manual and on the Lubricant Data chart for 1999 Mitsubishi Montero Sport it tell you this
"Models equipped w/4A/T transmission use ATF Dextron II. Models w/INVECS-II 4AT use Diamond ATF SP II M. "
How can I thell wich transmission has my monty in orther to select the correct oil??? There is much confussion about the correct oil to be used in those transmissions.
Since either Dextron or Diamond oil are conventional ones, using of synthetic oils are supposed to be better oils, can I use them?
Thanks in advance for your help.
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Post by redcentinela on Apr 19, 2010 10:54:00 GMT -5
I am asking because I had to fix an oil leak at the transmission pan also replaced the oil filter but at he time to select the oil, there is too much controversy about the type of oil this tranny use, I had to reused the same oil I took out from this tranny.
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Post by buggzyy on Apr 20, 2010 0:50:23 GMT -5
Up to 99 MY use dex II or dex III 00 and on use SPIII this is what Mits. recomends I have seen multi oil's used in all these tranny's I have seen little issues by doing that. I personally don't use anything other than SPIII in mine. Just remember these multi. oils are suitable to use not approved for use, two different things. suitable means it will work but may cause undesirable shift quality, approved means the manufacture has approved this oil to be used in their transmission and maintain shift quality.
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Post by OnSafari on Apr 22, 2010 12:49:45 GMT -5
In the 1999 model-year, ONLY the Montero Sport Limited, with the 3.5L V6 had the Invecs transmission. Don't confuse the Limited with the ES/LS/XLS models of that year which still had the 3.0L V6 and Aisin Warner transmission.
Before the high capacity trans pan update was released as a TSB update, I tried all sorts of ATFs in my 99 Limited when I had it to try to solve a constant overheating problem. I tried Mobil 1, Chrysler ATF +4, and some of the various mass-market brands (Castrol and Valvoline) who market "import" fluids that they claim are SP-III compliant.
All I can say is, DON'T DO IT. Just buy the SP-III from Mitsu and be done with it. None of these fluids except SP-III provided very good performance and some were downright poor (like Mobil 1). These transmissions are expensive to fix, even if it's just resealing leaks. If you go cheap now...well, you know the saying, "You can pay me now, or you can pay me later."
If you're having overheating issues with the trans, even if you've done the pan update like I did, add an aftermarket transmission cooler. That solved it for me once and for all and I ran nothing but SP-III from there on out until I sold the vehicle in excellent working condition with over 210,000 miles on it. I now have a 2003 XLS and run strictly SP-III with no performance issues.
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Post by CerOf on Apr 22, 2010 23:21:36 GMT -5
I had zero problems in my '01 switching to ATF+4. Yes, I sold it, but the guy who owns it lives in my neighborhood. 80K+ and going strong. Been using ATF+4 since around 30K miles.
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Post by dannytuned on Apr 23, 2010 9:41:56 GMT -5
I had zero problems in my '01 switching to ATF+4. Yes, I sold it, but the guy who owns it lives in my neighborhood. 80K+ and going strong. Been using ATF+4 since around 30K miles. Same here. Nobody can convince me that the ATF+4 is causing the Invecs transmissions to fail. ...But the debate will rage on.
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Post by MitsuMontySp99 on Apr 23, 2010 15:56:49 GMT -5
Just an FYI on the issue regarding the transmission overheat for the 1999 Montero Sport brought up by OnSafari: I experienced this event mostly during warm weather but I have theories based on observations.
- The tranny breather hose is located close to the exhaust manifold. If you ever experienced overheating, check the ATF fluid level if overfilled. Heat generated from the manifold cooks the breather then in turn builds heat pressure to the overfilled fluid. Proper fluid level is critical. (I also think that extending the tranny breather hose away from the manifold will aid). Mitsubishi already made a recall on this but the breather is still at close proximity to the manifold.
- If the rear camshaft seals leak, the engine oil drips down to the manifold then slowly getting fried, causing smoke and heat buildup. Since the transmission breather is closely located to the exhaust manifold which compunds the problem, the smoke and heat goes through the transmission breather then heats up the ATF fluid. Replacing the o-ring seal of the rear camshaft will help.
Again, these were just my personal theories based on observations. If somebody has a proven fact explaining why the 1999 Montero Sports' transmissions overheat, please share it with us. I don't like theories myself, I like scientific explainations.
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Post by OnSafari on Apr 23, 2010 20:22:38 GMT -5
Nobody can convince me that the ATF+4 is causing the Invecs transmissions to fail. ...But the debate will rage on. Mine didn't fail but it sprang several leaks while running ATF +4, including the front pump seal. Coincidence? Perhaps. But maybe some of the Mitsu seals just don't like +4.
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Post by OnSafari on Apr 23, 2010 20:27:57 GMT -5
Again, these were just my personal theories based on observations. If somebody has a proven fact explaining why the 1999 Montero Sports' transmissions overheat, please share it with us. I don't like theories myself, I like scientific explainations. From my aging and failing memory, according to the TSB Mitsu issued with the pan update, the problem was that the original shallow pan on the 1999 Invecs allowed the fluid in the pan to sit too close to the moving parts in the transmission, causing the fluid to foam. Foamy ATF doesn't have the lubrication or hydraulic properties an auto trans requires and one of the side effects was a transmission that quickly overheated. The deeper pan didn't add fluid capacity. It just moved the fluid in the pan farther away from the moving parts so it could remain in a proper (non-foamy) state. That's how I remember it anyway.
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Post by redcentinela on May 17, 2010 17:52:21 GMT -5
OK, I still don't understand. I have a 1999 Montero Sport LS. Accrding with other guy, only the limited model came with the invec mitsu tranny which only uses the so called diamond III oil. Well according with another guy my monty has a "bulletproof Aisin Warner tranny which uses Dextron II oil.
Here goes the questions,
a- Do the diamond spIII is Dextron II compatible or should I use the Dextron II as recommended?
b- Any synthetic oil you may recommend for that tranny?
c- according with your experience which one of the above is the best for m y monty?
Thanks.
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Post by delf360 on Jul 11, 2011 11:29:11 GMT -5
I have a 2000 montero Sport S/ 3.5 engine. I tackeled the valve cover gaskets over the week end. Well My helper ( Wife ) cleaned all the bolts I had. The numbers I had on them are gone. Can any one tell me where or what bolts go on the lower intake manifold? Thanks in advance!!!
Del in New Orleans delf360@yahoo.com
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Post by OnSafari on Jul 11, 2011 14:59:41 GMT -5
Del,
Start a new thread with your question. Anybody who can answer this isn't likely to look in a transmission thread expecting a question about exhaust manifolds.
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