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Can a 150k mile manual transmission oil be in good shape???
#5275148
11/23/19 06:06 AM
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Joined: Nov 2019
Posts: 12
Umit
OP
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OP
Joined: Nov 2019
Posts: 12 |
Hi I checked my Hyundai oil and it dripped pretty yellow. I was expecting a black colour. And seemed pretty lubricative with my fingers.
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275152
11/23/19 06:21 AM
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Joined: Jul 2005
Posts: 33,579
demarpaint
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Joined: Jul 2005
Posts: 33,579 |
Maybe, maybe not. Not the answer you were looking for but, without an analysis no one would know for sure. With 150K miles odds are it is spent and due for a change.
God Bless Our Troops
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275153
11/23/19 06:21 AM
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Joined: Mar 2013
Posts: 1,215
joegreen
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Joined: Mar 2013
Posts: 1,215 |
I'm not knowledgeable in this but i am going to assume because there is no filter the manual transmission the oil wants the dirt to settle out making the fluid appear clean. Also different anti wear additives or viscosity modifiers are probably wearing out. I'm sure the gears inside are causing the fluid to shear out of spec
Last edited by joegreen; 11/23/19 06:22 AM.
1978 Chevrolet k20 Engine: Delo 10w30xle Transmission: Castrol transmax dex/merc
1984 Mercedes-Benz 300 turbo diesel Engine: Delo 400 15w40le
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275154
11/23/19 06:22 AM
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Joined: Feb 2019
Posts: 577
Railrust
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Joined: Feb 2019
Posts: 577 |
I mean, you're probably going to get told to send it out for analysis...that color doesn't mean a thing...follow the owner's manual, etc, etc, etc. But I do think manual transmissions are probably "easier" on the fluid than an automatic transmission.
An automatic transmission fluid has to do more things...it has to perform hydraulic tasks, it runs hotter, it has to allow friction between the clutches, it has to lubricate, and it has to fight heat. The manual tranny has to lubricate and provide protection while supplying smooth shifts. It's generally a "thicker" fluid. It runs cooler. Having said that, I'd change the fluid. You'd spend the same getting an analysis done and changing the fluid isn't going to "hurt" anything, like it might do in an automatic transmission because of the friction qualities.
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275177
11/23/19 07:11 AM
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Joined: Sep 2002
Posts: 3,615
Gebo
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Joined: Sep 2002
Posts: 3,615 |
Does the owner's manual give you any instruction as to when to change it?
When I had manual transmissions, I would change about every 30K or when the shifting got a little clunky.
I'd just change it.
'98 LEX LS400 300K '02 4Runner 245K '05 Lex LS430 85K '07 Lex GX470 65K
Shell Gas and Truck & Pennzoil Full Syn HM Toyota ATF's and Coolant Amsoil Gear Oil and Grease
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275201
11/23/19 07:51 AM
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Joined: Sep 2004
Posts: 23,543
Mr Nice
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Joined: Sep 2004
Posts: 23,543 |
Yep. 30K miles max with a manual transmission.
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275207
11/23/19 08:06 AM
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Joined: Jun 2003
Posts: 34,994
eljefino
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Joined: Jun 2003
Posts: 34,994 |
Saturn recommended a change at 6k (to get initial wear particles out) then never again.
It was of course a mere 2.3 quarts of dexron so a change could be done for under $10.
Trannies don't get screaming hot-- they'd better not-- but if you drain it after a nice highway run the engine heat may have conducted through the bellhousing. This would thin the oil and shake up the junk on the bottom.
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275236
11/23/19 08:37 AM
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Joined: Oct 2015
Posts: 3,279
FordCapriDriver
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Joined: Oct 2015
Posts: 3,279 |
300k+ miles on the manual gearbox in my Capri.
Until 2016 it had never had a single oil change, still going strong with absolutely no problems, i changed the oil in it again this September which improved the shift quality.
1975 Ford Capri II Ghia 3000 V6 - Repsol Elite Super 20W-50 1988 Ford Escort XR3i Cabrio - Shell Rimula R4X 15W-40 HDEO
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275269
11/23/19 09:18 AM
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Joined: Nov 2019
Posts: 12
Umit
OP
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OP
Joined: Nov 2019
Posts: 12 |
Thx for answers. To tell the truth i tried to change today but the tool was weak to open drain plug. I had socket for fill plug so i checked and asked. Manual says 100k km. Shifting is a little poor btw 1 2 3 . So i will buy socket for drain...
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275277
11/23/19 09:25 AM
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Joined: Dec 2006
Posts: 20,695
aquariuscsm
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Joined: Dec 2006
Posts: 20,695 |
Do standard transmissions truly ever fail? I've never seen it happen.
1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300) Quaker State Ultimate Durability 10W30 2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red Quaker State Ultimate Durability 0W20
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: aquariuscsm]
#5275291
11/23/19 09:39 AM
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Joined: Sep 2017
Posts: 12
SpitFire6
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Joined: Sep 2017
Posts: 12 |
Do standard transmissions truly ever fail? I've never seen it happen. Hi, Mine have/do. On my 5th gearbox in 20 years. Lost 3 in four years. My present one has lasted over ten years. a Little noise on 1st. Too expensive to replace at the moment. Cheers, Iain.
2002 206 CC 2L 4Cyl. 1972 Spit 2L5 6Cyl.
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275335
11/23/19 10:30 AM
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Joined: Dec 2002
Posts: 43,390
JHZR2
Global Moderator
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Global Moderator
Joined: Dec 2002
Posts: 43,390 |
If the oil is at 150k, it’s likely to have wear materials, particles, moisture, etc.
Generally manual transmissions and differentials are considered “bulletproof”. Some of this is likely because they don’t face combustion situations/byproducts, don’t have the shearing and need for providing hydraulic pressure, and so they’re used in a much simpler way. So a relatively simple lubrications approach is sufficient to satisfy the need.
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275459
11/23/19 12:57 PM
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Joined: Sep 2004
Posts: 23,543
Mr Nice
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Joined: Sep 2004
Posts: 23,543 |
Honda had a reputation in the past for input shaft bearings going bad at under 100K miles especially in the Civics even with 30K mile MTF changes.
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: Umit]
#5275463
11/23/19 01:01 PM
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Joined: Aug 2010
Posts: 2,009
benjy
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Joined: Aug 2010
Posts: 2,009 |
prolly not good a long time ago but as noted manuals, my choice are longer lasting + durable except for a possible clutch job!! FWD's with shared driveline + tranny juice need more changes like a motorcycle that uses oil for engine + clutch, its your $$$ + DIY is CHEAP!!!
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Re: Can a 150k mile manual transmission oil be in good shape???
[Re: aquariuscsm]
#5275958
11/24/19 06:08 AM
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Joined: May 2018
Posts: 1,342
ka9mnx
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Joined: May 2018
Posts: 1,342 |
Do standard transmissions truly ever fail? I've never seen it happen. I have only dealt with class 8 trucks but, yes, they do wear out. First the syncros, from sloppy shifting, then the bearings follow. Gears usually look like new.
2005 Ranger 3.0 - SuperTech Syn 5w-30/Motorcraft 2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota 1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar 1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
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