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Slipping right after ATF change - SOLVED.

11767 Views 94 Replies 26 Participants Last post by  Ted, 
Nhu
I have been very careful with the van since the beginning (Muzzled, ATF change every oil change). Everything works great so far. Today I changed ATF and the van immediately started slipping after that. As I speed up, I can see the RPM moves up and down as if it is gear hunting but I think it's just compensating for the slippage. Sometimes, letting go of the brake will not move the van and I have to give it gas >1-1.5K RPM to actually move it.

The van is 2017, 67K km.

I used to do all my ATF change, this is the only time I did it at the garage. I guess that was the mistake??? I'm thinking of just order some ATF and do a 3 drain-fill cycles to see if it helps. Is this a good idea. It has been running perfectly before the ATF change so I don't think there is damage to it.

Thanks for your inputs.

SOLVED: Do drain-and-fill 3X with DW-1 fixed the problem.
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T
Nhu said:
No. This is my trusted mechanic. He said he used ATF for "import" that is equivalent to DW1.
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That's a garbage answer. He doesn't know what was put in there, so is going vague.


Nhu said:
That's why I don't know what could cause this.
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The wrong ATF. While sometimes there are coincidences, the odds of "coincidence" and your tranny was about to fail no matter what are extremely low, in my estimation.

Are you going to continue using this trusted mechanic? Has he offered to make it right?

Personally, I would hold the mechanic to a much higher standard than some retail stock clerk who made a substitution. Remember, the WM clerk told you it was a substitute and gave you the opportunity to accept or decline it. Totally appropriate conduct. The mechanic poured whatever into your tranny, without asking, and has just played dumb. Which, on second thought, may not be an act.
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T
Maybe he confused Maxlife Oil with Maxlife ATF. Valvoline uses the same signature red container for both. Only half kidding.
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T
And no flashing D, or error message of any type?
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T
It's not a case of a tranny being robust, or not. The fluid used must meet the design needs of the tranny, in particular the clutch friction and steels. That's part of the reason for the multiplicity of ATFs and CVT fluids.
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T
You can think of it as weaker because it requires the ATF specified to operate properly. I see it more like blood. Some athletes are AB+, and can take whatever blood is hanging around getting old. Others are O- ,and require an exact match. Both can be equal in strength, speed, endurance...robustness. Or the O- can actually be more robust.
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T
It's interesting to look at the Valvoline offerings. The red Maxlife is recommeded by Valvoline to replace both Z-1 and DW-1. That's $18 a gallon at WM. They also sell the multi vehicle which does not include DW-1 in its coverage, and sells for ~$28 a gal at WM. We await the solution of the mystery.
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T
I assume the viscosity has a value range spec'd by Honda. Does anyone know if any of the other elements listed has a specified (by Honda) range, and if so, what it is?
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T
yotee said:
This is beyond excessive, follow a more reasonable schedule. A trust-worthy mechanic would not have recommended an ATF change every 5k miles. You're just lining their pockets.
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Read the posts. He does most of the drain and fills himself. And doing one at every OC is something that many posters here do.
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T
Nhu said:
It clearly says on the label that it is compatible with DW-1 ATF.
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Sometimes it's all in the definition of terms. This could simply mean that you won't get a violent chemical reaction when you mix the two. Unlike sulfuric acid and water,
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T
No jumper cable, or 12 inch long piece of wire or copper pipe or aluminum or...any conductor?

Electrically connecting the two cables resolves issues that do not go away with just disconnecting.
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T
So, it's Verco's "one size fits all" ATF product.
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T
@Nhu , thanks for closing the loop.
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