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RH77 · 03-22-2008, 12:27 AM

It was much easier than I anticipated -- changing out the auto-trans fluid. Unscrew the plug, drain, fill. The plug has a magnetic tip and had a generous build-up of grey gunk and shavings. Apparently it did its job.

The rationale is that the synthetic fluid will allow a longer-term service interval, and hopefully less resistance and friction.

The substance of choice is AMSoil ATF (the only synthetic rated for Honda Z1 transmission requirements).

This is merely a drain and fill at 2.9 Quarts vs. the overhaul capacity at 6.2 U.S. Quarts.

CAUTION: BUTT DYNO...

I can't say that the shifts are smoother (purposely tightened), but TC lockup seems to offer more pull (which can be good or bad). The hope is that heat and slicker resistance offer better FE.

Objective data is forthcoming. Over the next few tanks, we'll see if it's worth it...

RH77

03-22-2008, 12:27 AM	#1 (permalink)
RH77 Hybrid Student Driver Join Date: Nov 2007 Location: Kansas City Area Posts: 1,712 Teggy - '98 Integra LS 90 day: 33.38 mpg (US) IMA - '010 Insight EX Team Honda 90 day: 42.69 mpg (US) Tessie - '06 TSX Base 90 day: 27.1 mpg (US) Thanks: 21 Thanked 20 Times in 19 Posts	Synthetic Transmission Fluid Change It was much easier than I anticipated -- changing out the auto-trans fluid. Unscrew the plug, drain, fill. The plug has a magnetic tip and had a generous build-up of grey gunk and shavings. Apparently it did its job. The rationale is that the synthetic fluid will allow a longer-term service interval, and hopefully less resistance and friction. The substance of choice is AMSoil ATF (the only synthetic rated for Honda Z1 transmission requirements). This is merely a drain and fill at 2.9 Quarts vs. the overhaul capacity at 6.2 U.S. Quarts. CAUTION: BUTT DYNO... I can't say that the shifts are smoother (purposely tightened), but TC lockup seems to offer more pull (which can be good or bad). The hope is that heat and slicker resistance offer better FE. Objective data is forthcoming. Over the next few tanks, we'll see if it's worth it... RH77 (Support Ecomodder.com & get rid of these annoying ads!) __________________ Supporting those devastated by the Joplin Tornado EF5 / 22-May-2011 _ _