Just changed MTF and rear diff fluid - big difference
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Just changed MTF and rear diff fluid - big difference
I have 20k on my car and decided to change the diff and trans fluid to get ready for Thunderhill. I was surprised at how dirty the rear diff fluid was. It was dark grey/brown with lots of metal shavings on the magnetic plug. I was surprised because I changed diff fluid on a Mazda 323 with 80k and it came out as clean as the fresh fluid. I replaced the fluid with Castrol Syntec gear lub. I then changed the transmission fluid with Honda MTF (no one heard of MTF-2 at the Honda parts counter, and it didn't come up on the computer). That also came out dark grey/brown. I immediately felt the difference in shifting after the change. A lot of the clunckyness is gone, and there seems to be more "cushion" when shifting into gear, but still feels just as precise. I was surprised to feel such a difference. I had the clutch TSB done at about 9k so this fluid only had about 11k on it.
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I have access to a lift, so it was very easy. It's doable with the car on jack stands, but much less comfortable. The rear diff requires a 24mm socket and 23mm box or open end wrench (you cant get a socket onto the fill plug because there is a brace just behind the diff). For the transmission, the drain plug requires a 3/8" socket wrench (no socket attached) and the fill plug I think was a 17mm. The only other gadget needed is a pump to pump out the fluids form the bottles into the fill plugs. Most carpart and marine part stores will have this.
#5
Honda recommends changing the diff fluid every 15k, The rumor i heard when I bought one is that it is a mazda rear. I had an 86 rx7, which coincidently needed the rear diff done every 15k.
#6
Honda recommends changing the diff fluid every 15k, The rumor i heard when I bought one is that it is a mazda rear. I had an 86 rx7, which coincidently needed the rear diff done every 15k.
#7
My anecdote:
Changed the diff fluid on mine for the first time at 16K, and it was truly filthy: dark grey, almost gloppy, and the magnetic plug must have had 3mm of gunk on it. Put in Mobil 1 75W90, car felt fine, but I decided to change that out, too, after only a week (sort of a "flush"). Indeed, to my surprise, it also came out quite grey (was originally a clear golden color)! Very little gunk on the plug though, as hoped/expected. Now I have Redline Shockproof Heavy... car's again running fine -- no noticeable difference from the Mobil 1... Guess we'll see how it pans out.
Changed the diff fluid on mine for the first time at 16K, and it was truly filthy: dark grey, almost gloppy, and the magnetic plug must have had 3mm of gunk on it. Put in Mobil 1 75W90, car felt fine, but I decided to change that out, too, after only a week (sort of a "flush"). Indeed, to my surprise, it also came out quite grey (was originally a clear golden color)! Very little gunk on the plug though, as hoped/expected. Now I have Redline Shockproof Heavy... car's again running fine -- no noticeable difference from the Mobil 1... Guess we'll see how it pans out.
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