Dealer performs a software update and drain and fills trans fluid 2 times. This was covered by Honda up to 80k miles. After that it’s on you. since Honda did not alert me I discovered it at 81k and they still would not cover it. But this did fix the problem and my dealer did it for 225.00I read in this forum that the transmission holds 10 quarts of Honda ATF-DW1 fluid but the drain and refill procedure replaces only 3 quarts of old fluid with new fluid. What remains is 66.7% old fluid. Several of you run the vehicle until the transmission fluid warms up or drive the vehicle for a short time and repeat the drain and replace 3 quarts of fluid. Now what remains is about 44.5% old fluid. I guess Honda believes the 66.7 procedure is sufficient to keep the transmission functioning appropriately.
I have been performing the 66.7% procedure and my transmission began to "shudder" when shifting between 2nd and 3rd. A transmission repair shop recommended adding 4 oz of Lube Guard Instant Shudder Fix and that cured the problem. I now am at 100,000 miles and plan to perform the 44.5% procedure (or two sequential changes) and see if the shudder problem reoccurs.
Any others of you have experienced the shudder issue? If so what was the solution?