Honda Odyssey Forum banner

1 - 3 of 3 Posts

·
Registered
Joined
·
7,508 Posts
Discussion Starter #1
Been doing a bit of DIY maintenance on our new (to us) 1998 Accord LX sedan. No servicing whatsoever annotated in the owner's manual, but the compression was in the sweet spot for a new engine. Original owner was an old lady who said she kept up on the oil changes at the dealer...the solid and even compression on all 4 cylinders and clean valve gear (looking through the oil fill with a flashlight) seemed to confirm this. Immaculate interior. The Michelin Symmetry tires had over 1/3 of tread remaining, with code "2304" on the sidewall (manufactured 23rd week of 2004). I think she'd only changed the tires once in over 174,000 miles!

Changing the timing, accessory, power steering and balance shaft belts plus all tensioners were the first order of business, though everything looked new...but you can't tell with this stuff just by looking at it, so I installed new items. It had an oil change right before we purchased it from the original owner, and Mobil 1 5W30 and an AmSOil EaO20 filter are waiting in the garage when it's time for that. I installed a Hayden 676 tranny cooler and Magnefine inline filter upstream of it, and started using it as our "in town car" for errands and groceries.

It was shifting just fine to begin with, but during our last snowstorm it did thump just a little going into reverse right after starting up, so I decided to do the first ATF drain-refill not too long after we finally started using this car regularly.

Black. Pitch black ATF draining into the pan.

I mean, I didn't see any red, not even a hint of it. It didn't smell bad, but it looked awful. Looked like very thin waste crankcase oil that had not been changed in a long time. The drain pan had a bunch of "black silt" in it, which is the worn material from the frictions, steels and bearing surfaces in the tranny. I decided it would be best to do a bunch of drains & refills. I used spare ATF I had in my garage, since I wasn't going to keep it in this tranny for very long anyway.

I did the first and second refills with almost 6 quarts of Dexron III/Mercon generic Walmart (Sam's Club) ATF and about 3 oz. of LubeGard Black with each refill. Third drain-refill I did with 3 quarts of the same Dex/Merc and my remaining LubeGard Black (4 oz.). Fourth drain-refill was with 3 quarts of Valvoline MaxLife I had in the garage. Only drove about 10-15 very light miles on each of these drain-refill events, going through all the gears and torque converter lockup. The total amount of black silt from all four drains probably came out to a level teaspoon, if I had to guess just by looking at it.

Fifth drain-refill, and finally the waste ATF was red with none of the black silt in the drain pan, and a very, very light coating of material on the drain plug magnet. Filled it with ATF-Z1 this time (I have a couple cases of it from the good old days when it was cheap online at Maximum Auto Parts). Will do 3 more drain refills with the ATF-Z1 over the course of next week. It shifts a little smoother now, but again, it was shifting fine before I did this. I can say that if it didn't make that light, annoying thump upon shifting into reverse on freezing cold days, I don't think I would have drained the ATF in the first place.



I don't think the little old lady who owned it ever, ever, ever had the Honda dealer drain & refill the ATF. Over 174,000 miles, probably with minimal topping off, if at all. Yikes. I've only got about 2,000 miles or so on it since I installed the Magnefine in the rubber line leading to the Hayden ATF cooler, but I'll bet that inline filter is clogged. I'll probably change it during the course of the next 2 or 3 drain-refills with ATF-Z1. I did an ATF drain-refill when I installed the new radiator and Hayden 676, but I recall that being a night-time job in my dimly lit garage...can't believe I didn't notice the ATF being that dark then.

Amazingly, the car still shifts fine.

OF
 

·
Registered
Joined
·
157 Posts
Hi OF!

That car is an amazing find. 2304 dated tires? wow. that speaks well of Michelin rubber.

If I may suggest, and I know most dont agree :) but i would recommend adding some Type F ATF to that tranny to make it even last longer. 50/50 mix would be good. That should slow down the wear of the clutch packs significantly and make it last a while longer. That should also lessen the amount of black silt that you would get.

Sincerely,
CK
 

·
Registered
Joined
·
7,508 Posts
Discussion Starter #3
I am thinking of getting a Type F synthetic to add to the mix. Not only may it enhance wear properties, but Type F ATFs have a pretty high detergent base...with as much as I'm draining-refilling on this tranny, it'll be a good way to remove all the "stuff" in this old car's tranny.

Luckily, I have a few spare Magnefine filters. Going to change it this week after a couple more drain-refills.

Looking at the weights, this old Accord weighs about the same as the new Civic. No wonder the tires last forever.

OF
 
1 - 3 of 3 Posts
Top