The next drain + fill in my 2004 Accord will be with Dexron VI. I'll let ya'll know how it goes. I expect to notice absolutely nothing.

But for the faint of heart, DW-1 is the obvious choice.

I did a quick excel sheet to determine how long it'll take to completely (more or less) switch to a different ATF using the 3-quart drain & fills that are pretty standard for Hondas. I'm starting with the assumption that this transmission holds a total of 9 quarts of ATF- I'm thinking that was the capacity for my 2004 Accord with a 4-cyl. Somebody correct me if I'm wrong and I can change the numbers a bit.



# Quarts Z1... Quarts D6
0 9.000000000 0.000000000
1 6.000000000 3.000000000
2 4.000000000 5.000000000
3 2.666666667 6.333333333
4 1.777777778 7.222222222
5 1.185185185 7.814814815
6 0.790123457 8.209876543
7 0.526748971 8.473251029
8 0.351165981 8.648834019
9 0.234110654 8.765889346
10 0.156073769 8.843926231
11 0.104049179 8.895950821
12 0.06936612 8.93063388
13 0.04624408 8.95375592
14 0.030829387 8.969170613
15 0.020552924 8.979447076
16 0.01370195 8.98629805
17 0.009134633 8.990865367
18 0.006089755 8.993910245
19 0.004059837 8.995940163
20 0.002706558 8.997293442

Well I talked the talk, but couldn't walk the walk. After some soul-searching, I ended up ordering some DW-1. Just did a 3-qt. drain & fill- I'll see how it runs tomorrow. I expect to notice absolutely nothing... but with less anxiety than if I had used Dexron VI.

I just purchased dw1 today and the bottle looks nothing like the one posted and says nothing about being synthetic.

I have never used DW-1, but a great alternative from Honda ATF is Valvoline Maxlife ATF. Have used it for 2 years now in the imfamous Acura MDX tranny. So far shifts much better and at a bargain for a Synthetic!

I got the dw-1 for like 6.50. So its not that bad. I feel better just getting the honda stuff and not taking any chances. Not sure why im so worried. Never that worried about my GM products and they ran and run just fine.