RT
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« on: September 07, 2010, 04:29:45 PM » |
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Which one of these gear oils protects your tranny better?
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2000 Jeep TJ, Cold Air-Ram Intake, Flowmaster 40 w/ 2.5" pipe, Rubicon Alloys, 285/75/16 Wrangler MTR kevlars. Rancho RS5000's (to come), RS9000 steering stabilizer. Full Synthetics.
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jfrabat
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« Reply #1 on: September 07, 2010, 05:37:46 PM » |
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Which one of these gear oils protects your tranny better?
I have not run Synchromesh, but MT90 is great; it made my tranny smoother. |
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'94 YJ 2.5L with 4" RE lift, Adv. Ad. SYE, Woody Shaft, Superwinch EPi9.0, 62mm TB, FoMoCo e-Fan, SD30 and SD35 w/ARB-4.88, 165A alt., 4 KC aux lights, Aluminum Rad, BRX hoses, 33" BFG KM2 on 15" AR wheels, Sony sound system, Pavement Ends Hardtop, Bosch 19# Injector, Safari Snorkel, Hydroboost
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FourbangerYJ
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« Reply #2 on: September 07, 2010, 06:38:24 PM » |
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I have not run Synchromesh, but MT90 is great; it made my tranny smoother.
Me too. |
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Scott~ Using tools you have not used in a while is like shaking hands with old friends.  |
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Bounty Hunter
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« Reply #3 on: September 07, 2010, 08:03:11 PM » |
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Is synchromesh a synthetic like the MT90?
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chrisfranklin
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« Reply #4 on: September 07, 2010, 08:08:11 PM » |
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Mt-90 is what I'm using and it's good.
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'94 2.5 YJ S 5spd, Borla Cat-Back, CarSound Cat, Ceram. Coated Headers, PDI Ignition, 62mm TB, Custom CAI, 19lb injectors, Adjust. FPR, Shrockworx Rockers, 4xd Diff Guards/Gas Tank Skid, Skid Row Oil Pan Skid, Discos, MeanGreen Starter, 31" Destination MTs, Aussie Locker (D30), stock 4:10 gears
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dwtaylorpdx
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« Reply #5 on: September 07, 2010, 08:30:08 PM » |
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Guess I'm the odd man out, but my tranny was rebuilt to use lighter weight lube,
the stock bearings are shrouded and if the lube is too thick it wont get in the
bearings like its supposed to. (Yet another Mopar spec against what Aisin recomended....)
I've been running 20W50 Synthetic oil. Or The actual AX5 lube from the dealer.
The real test would be a temperature probe and some freeway miles... HMM>
Dave
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94 YJ - 2.5 Hesco Cam B&B Ported - AX5 Trans w/Centerforce Dual Friction Clutch - 4" Rough Country Lift W/Black Diamond Shocks - D44 Rear w/ARB - D30 Front W/ARB - Homebuild on board electric air - Warn M8000 in Custom Bumper - Reunell Rear Bumper - Tuffy Console & Cargo - 265x85-16 Tires - 2M Radio
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neale_rs
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« Reply #6 on: September 08, 2010, 06:35:26 AM » |
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I've been using Pennzoil Synchromesh for about 4 years now (only about 5000 miles) and it has worked well. I don't think it is synthetic and it was available locally.
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'95 YJ, 33 x 12.5 BFG MTs, RE 4.5 ED lift, Atlas 4 speed, CV DS, rear D44 w/ ARB, 4.56 gears, 8000# winch, track bars removed
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RT
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« Reply #7 on: September 08, 2010, 09:20:31 AM » |
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kk I just ordered some, shits expensive!!  but less expensive than a tranny i guess. |
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2000 Jeep TJ, Cold Air-Ram Intake, Flowmaster 40 w/ 2.5" pipe, Rubicon Alloys, 285/75/16 Wrangler MTR kevlars. Rancho RS5000's (to come), RS9000 steering stabilizer. Full Synthetics.
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1995yj
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« Reply #8 on: September 08, 2010, 10:48:19 PM » |
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I'm running mobil's synthetic gear oil in my AX-5, Mobil 1 Synthetic Gear Lube
LS 75W-90, seems ok, but not real happy with my shifting. Seems to have gotten tougher. First chance I'm switching to some standard gear oil or MT-90.
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« Last Edit: September 08, 2010, 10:55:37 PM by 1995yj »
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[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold]
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T]
--Justin
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Bounty Hunter
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« Reply #9 on: September 09, 2010, 05:30:03 AM » |
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I'm running mobil's synthetic gear oil in my AX-5, Mobil 1 Synthetic Gear Lube
LS 75W-90, seems ok, but not real happy with my shifting. Seems to have gotten tougher. First chance I'm switching to some standard gear oil or MT-90.
Mobil is likely GL5 and will ruin your synchros, causing notchy shifting before it gets real bad. Change it to synchromesh or MT90 soon. MT90 is best, being a full synthetic it can really improve the shifting, especially when cold. |
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jfrabat
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« Reply #10 on: September 09, 2010, 07:53:59 AM » |
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MT90 is best, being a full synthetic it can really improve the shifting, especially when cold.
I'll second this; I had strong doubts when I bought it (was thinking along the lines of "snake oil"), but mine shifts real nice now. |
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'94 YJ 2.5L with 4" RE lift, Adv. Ad. SYE, Woody Shaft, Superwinch EPi9.0, 62mm TB, FoMoCo e-Fan, SD30 and SD35 w/ARB-4.88, 165A alt., 4 KC aux lights, Aluminum Rad, BRX hoses, 33" BFG KM2 on 15" AR wheels, Sony sound system, Pavement Ends Hardtop, Bosch 19# Injector, Safari Snorkel, Hydroboost
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FourbangerYJ
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« Reply #11 on: September 09, 2010, 08:28:02 AM » |
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I'm running mobil's synthetic gear oil in my AX-5, Mobil 1 Synthetic Gear Lube
LS 75W-90, seems ok, but not real happy with my shifting. Seems to have gotten tougher. First chance I'm switching to some standard gear oil or MT-90.
I ran M1 for about 10K miles. I changed it out and was very surprised to see how much shiney yellow syncro material came out with it. M1 is a GL5 lube. That's bad MMkay. Standard gear oil is GL5, that's bad MMkay. Syncromesh or Redline MT90 or one of the other oils listed in the FAQ page is what you need. (GL3) rated. |
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Scott~ Using tools you have not used in a while is like shaking hands with old friends. |
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RT
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« Reply #12 on: September 09, 2010, 05:20:37 PM » |
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Sweet, whatever works man, will I feel any difference in acceleration or overall peppyness.  ..seeing as how I'm lessing the friction lag on my engine |
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2000 Jeep TJ, Cold Air-Ram Intake, Flowmaster 40 w/ 2.5" pipe, Rubicon Alloys, 285/75/16 Wrangler MTR kevlars. Rancho RS5000's (to come), RS9000 steering stabilizer. Full Synthetics.
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FourbangerYJ
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« Reply #13 on: September 09, 2010, 05:40:23 PM » |
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Sweet, whatever works man, will I feel any difference in acceleration or overall peppyness. ..seeing as how I'm lessing the friction lag on my engine I didn't. But now I need only a few hours of sleep each night and my vision is much better   |
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Scott~ Using tools you have not used in a while is like shaking hands with old friends. |
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RT
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« Reply #14 on: September 09, 2010, 06:32:07 PM » |
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2000 Jeep TJ, Cold Air-Ram Intake, Flowmaster 40 w/ 2.5" pipe, Rubicon Alloys, 285/75/16 Wrangler MTR kevlars. Rancho RS5000's (to come), RS9000 steering stabilizer. Full Synthetics.
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