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Author Topic: Manual Transmission Fluid?  (Read 14033 times)

kellsonm

  • Jr. Member
  • **
  • Posts: 56
    • 1994 Mercury Capri
Re: Manual Transmission Fluid?
« Reply #15 on: June 10, 2015, 01:50:59 AM »

Would you recommend AMS Oil 80W-90 synthetic or a Pennzoil Synchromesh for a '94 n/a?
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chrispoe

  • Sr. Member
  • ****
  • Posts: 435
    • 91 BP Capri GT
Re: Manual Transmission Fluid?
« Reply #16 on: June 10, 2015, 09:24:50 AM »

I use Amsoil GL-4 in my tranny because my F5M-R overhaul manual list the proper oil to use is a GL-4 and it should be a 75W-90.
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cjizzle252

  • Newbie
  • *
  • Posts: 45
    • 91 Capri XR2 89 Suzuki gsx1100 Katana
Re: Manual Transmission Fluid?
« Reply #17 on: June 12, 2015, 04:03:24 AM »

currently using synchromesh, it works better than ATF, im going to try gear oil soon, ill get back with results
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SHOwn

  • Sr. Member
  • ****
  • Posts: 287
    • 91 XR2
Re: Manual Transmission Fluid?
« Reply #18 on: September 20, 2015, 04:17:56 PM »

I had put Valvoline Mercon V Synthetic back when I installed the 5th gear swap (about 18000 miles ago), but just a week or so ago, I started having 2nd gear synchro problems, so I decided to switch to Mobil 1 MTX 75-90. Mmmm, me likey smooth quick shifting again, and hopefully, I'll still be able to move the shifter when it's -5 outside in the parking lot at work. I was surprised that the synthetic Mercon actually got stiff in those conditions. I never had trouble like that with previous synthetic ATFs, and I've had it in 3 previous Ford manual transaxles - 86 Escort GT, 95 SHO, and Mercury Topaz. The synthetic ATF fixed a similar problem with the Topaz hanging the 3rd gear synchro, but after synthetic ATF I drove it over 60k without another problem.

Anyway, I'm hoping the synthetic MTX does the trick in any weather this time.
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R. Powell
'91 XR2, LM 16" Chrome Drifters, White Gauge Faces, Kuhmo 40's, Big Brake UG, 2.5" Mandrel Bent CATback, BMW318 Heated Seats, `94 console, '99 Dodge Neon Spoiler, '94 XR2 Sideskirts Bumpers and taillights, Fresh Basecoat-Clearcoat Cardinal Red (Jul2014), vj11/vj14 hybrid, manual boost CTL.

SHOwn

  • Sr. Member
  • ****
  • Posts: 287
    • 91 XR2
Re: Manual Transmission Fluid?
« Reply #19 on: September 17, 2016, 10:24:17 PM »

Ok, time to report on the Mobil 1. After 17000 miles, shifting into 2nd and downshifting to 2nd had become about impossible. It has been bad for about the last 2000 miles. IDK if maybe the level was a little low, or if the stuff just stopped performing. I don't see any trans leaks and when I emptied it today, it looks like a good 3 quarts came out of it, so I just wonder about the fluid.

In the cold the Mobil 1 is definitely stiff, but my drive has me cruse a few miles without shifting a lot, so it warmed up pretty quickly for me.

Nonetheless, the stuff had to go, Lately, I always had to baby shifts into 2nd, and downshifts became a grind. So I switched to Penzoil Syncromesh today, after considering the posts above.

WOW! Instant smooth 2nd whether hard on the throttle or downshifting. I hate to blame the Mobil 1, maybe my level was a little down? All I know is next time I have any trouble I will pull the speedo gear and check that level.

For now, I'm considering the Penzoil the difference. Let's see if I can get more than 15k out of this stuff.
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R. Powell
'91 XR2, LM 16" Chrome Drifters, White Gauge Faces, Kuhmo 40's, Big Brake UG, 2.5" Mandrel Bent CATback, BMW318 Heated Seats, `94 console, '99 Dodge Neon Spoiler, '94 XR2 Sideskirts Bumpers and taillights, Fresh Basecoat-Clearcoat Cardinal Red (Jul2014), vj11/vj14 hybrid, manual boost CTL.
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