1st scheduled DCT Filter, Free?

We will see in 2021, Cam better be ready for a dollar exchange adjustment!

I'm hearing that we Canadians should know confirmed pricing this month from the dealers and be able to configure our cars accordingly. We know base pricing will remain the same but options will likely go up a lot.

I'm first up so hopefully I'll be one of the first to know!
 
For fellow Do-It-Your-Selfers wanting to change their own C8 DCT filter, since it's not free for us Canucks:

-$172.97/filter from BuyKippScottGMParts.ca (online order) + $.50 env. fee + gst + delivery (regular filter price $238.58++);
-$33.33/litre + $.10 env. fee + gst Pentosin FFL-4 auto trans fluid from same place (regular $48.99/litre++: wow). You'll need to replace the .2 litre of fluid lost when old DCT filter removed;
-so about $218 in parts + your time, to do it;
-good Chevy Dude YouTube video showing how to replace the filter, so it's easily done:



I'll ask anyone paying a dealership to get this done with their first oil change, to post the charge on the Forum so we'll know. TY.
 
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In case you have already added the extra 2 quarts of DCT fluid like I did, no need to top up lost fluid as getting to the brass fill plug is a massive P.I.A

*** If you're going to add the extra .2, you should just go ahead and add the full 2 just makes sense for the added cost of one more bottle of DCT fluid
 
In case you have already added the extra 2 quarts of DCT fluid like I did, no need to top up lost fluid as getting to the brass fill plug is a massive P.I.A

*** If you're going to add the extra .2, you should just go ahead and add the full 2 just makes sense for the added cost of one more bottle of DCT fluid

Correct me if I am wrong, but my understanding is that there is fill plug on the side of the DCT as well as the top. Not sure where or how accessible it is? For people NOT needing the extra 2 litres for the track they can top the DCT fluid up using that side plug. Much like filling a standard gear box, when the fluid starts to flow out of the side plug hole, it's full to the level it left the factory with.
 
Correct me if I am wrong, but my understanding is that there is fill plug on the side of the DCT as well as the top. Not sure where or how accessible it is? For people NOT needing the extra 2 litres for the track they can top the DCT fluid up using that side plug. Much like filling a standard gear box, when the fluid starts to flow out of the side plug hole, it's full to the level it left the factory with.
That would be much easier, the top plug under the airbox is a stupid long to get to. I still stick to my opinion that GM should add the extra 2 quarts to the Z51 cars for an extra $50. ( I'm sure it would cost them $10) . If you drive at all aggressively whether you have a Z51 or not I would add this to the DCT
 
In case you have already added the extra 2 quarts of DCT fluid like I did, no need to top up lost fluid as getting to the brass fill plug is a massive P.I.A

*** If you're going to add the extra .2, you should just go ahead and add the full 2 just makes sense for the added cost of one more bottle of DCT fluid

Thanks but I'm not planning to track the car so I didn't think that extra 2 litres necessary. But perhaps a good idea anyways, so I'll throw in the entire 1 litre (I've already bought only one litre). I've also found this "Michigan Muscle" YouTube video which suggests an easier way to reach the DCT fluid fill plug (see below). But I hope "Bucketoy" is correct and I'll not have to take everything apart otherwise just adding the fluid is worse than changing the filter itself.

 
Thanks but I'm not planning to track the car so I didn't think that extra 2 litres necessary. But perhaps a good idea anyways, so I'll throw in the entire 1 litre (I've already bought only one litre). I've also found this "Michigan Muscle" YouTube video which suggests an easier way to reach the DCT fluid fill plug (see below). But I hope "Bucketoy" is correct and I'll not have to take everything apart otherwise just adding the fluid is worse than changing the filter itself.


That's the video I used but it's still difficult to access and easy to strip brass plug
 
Or from the MidEngineCorvetteForum, "Neil H" came up with this idea to permanently install a feed hose to the fill plug. So for someone REALLY KEEN on having easy access to avoid taking everything apart time and again (ie. someone tracking their car LOTS) here's what Neil suggested:
My C8 is getting wrapped right now so I can't check on it, but we should be able to install a remote fill hose that is accessible in the engine bay
Bring your fill plug into your friendly neighborhood hydraulic supply store (for the thread and o-ring reference) and they should be able to get all the fittings and make up a hose -- steel braid sounds nice!
Then make a mount and mount it in the engine bay.
Sounds easy to me, but I did that stuff for a living for 25 years
wink.png
.
Even though the DCT has a vent just behind the cooler, it might be slow to fill using the remote fill, but definitely a lot quicker than what we have to do right now.
When I get my baby back, I will check into it & make a list of what is needed.
Sounds like a really good kit for one of our sponsor vendors to put together for us.
 
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Or from the MidEngineCorvetteForum, "Neil H" came up with this idea to permanently install a feed hose to the fill plug. So for someone REALLY KEEN on having easy access to avoid taking everything apart time and again (ie. someone tracking their car LOTS) here's what Neil suggested:
My C8 is getting wrapped right now so I can't check on it, but we should be able to install a remote fill hose that is accessible in the engine bay
Bring your fill plug into your friendly neighborhood hydraulic supply store (for the thread and o-ring reference) and they should be able to get all the fittings and make up a hose -- steel braid sounds nice!
Then make a mount and mount it in the engine bay.
Sounds easy to me, but I did that stuff for a living for 25 years
wink.png
.
Even though the DCT has a vent just behind the cooler, it might be slow to fill using the remote fill, but definitely a lot quicker than what we have to do right now.
When I get my baby back, I will check into it & make a list of what is needed.
Sounds like a really good kit for one of our sponsor vendors to put together for us.
I believe ABC or someone else that went to Ron Fellows School lately said they have a special funnel for this when you need to do 30 plus cars
 
Correct me if I am wrong, but my understanding is that there is fill plug on the side of the DCT as well as the top. Not sure where or how accessible it is? For people NOT needing the extra 2 litres for the track they can top the DCT fluid up using that side plug. Much like filling a standard gear box, when the fluid starts to flow out of the side plug hole, it's full to the level it left the factory with.

Thanks Bucketoy. To hopefully better finish off this topic, I've found in the MidEngineForum, a thread where "Teamzr1" identifies the DCT fill plug on the side of the C8 transmission with the red arrow below in the larger diagram (ignore the black arrow; see comments below):

C8 Transmission.jpg

Then "DCTguy" from that same Forum, better describes what you're seeing as follows:
Sorry I'm a bit late seeing this, but I want to offer some clarification so there is no more speculation/guessing.
The picture I grabbed from above has some great arrows in it so I will go off the color of those.
Blue - This arrow is pointing to the lower cover of the high pressure filter. There are four bolts to remove that cover. Inside is a cartridge filter that is changed as part of normal service
Red - This is actually the fluid level/fill plug most people will use. You fill the fluid to this level (until it starts to run out) then reinstall the plug. You fill it like you would a
normal manual - with a pump from below, or a hose from above.
Green - these are the electrical connectors. Not to be removed for any reason obviously
Black - this is NOT a fill plug of any kind. It is a detent assembly for a shift fork. There is another on the bottom side of the rear housing. Do not remove either.
The comments on the gold plug [see smaller diagram above with pink arrow]- The gold plug on the top of the main housing is the hole through which the transmission is filled at the factory. It is also a good option for adding the additional 2 liters for hard track use, though I believe air box removal may be required to access it. Another option may be to remove the rubber hose from the vent tube and attach a separate hose and fill through there. It would be slower to fill due to the smaller diameter, but would require less removal to access it.

Drain Plug - The drain plug is actually in the sump pan and not visible from this angle.

And everyone says be careful not to remove the wrong bolts or strip anything; it could prove costly. So map everything out in advance or forget all this and pay your dealer to do the work. Hope this helps out.
 
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Any update on this?

1. Does it include the DCT Filter?

2. Anyone have the details in print on the limitations of the 2 free oil changes. i.e. can they be done anytime within the 2 years/24K km? I would prefer to have the first done before the car reaches 12K Km. More likely will do the first one at 3000km or less.
 
Any update on this?

1. Does it include the DCT Filter?

2. Anyone have the details in print on the limitations of the 2 free oil changes. i.e. can they be done anytime within the 2 years/24K km? I would prefer to have the first done before the car reaches 12K Km. More likely will do the first one at 3000km or less.
Does what include the DCT filter? The free lube and oil change? If that is the question than no. It's 2 free engine oil changes. And they can happen any time within the first 2 years or 24,000KMS. SO you can get it done at 3k and then art 15k if all within the first 2/24
 
I'm not sure it is answered. GM Canada in typical fashion, is way too vague.

As mentioned earlier in this thread, are we suppose to change our first DCT canister filter after 1 year regardless of millage? Not sure if there was ever a definitive answer.

If I understand GM’s procedure correctly, they only specify to have that first canister filter changed at 12,000Kms. I’ve seen many posts recommending this to be done with your first scheduled engine oil change, which (along with other factors), does have a 1 year limit built into the oil life system. I understand that GM in the US is covering the cost of the DCT canister service, as well as the first engine oil and filter change if performed within the first year of ownership. This might be the reason why people are saying this though. Am I’m missing something?

Recently, world class certified service technician and Corvette Service Specialist Paul Koerner posted a video showing the deposits caught by the DCT canister filter. The vehicle only had 1,500. miles on it! I know a lot of people will probably perform this service early, but I was wondering what GM recommends? This, along with engine oil and filter, are services I was hoping to perform myself.

The manual says:
(5) Check the transmission fluid life percentage. If the percentage is less than 10%, replace the fluid and filter. The initial transmission canister filter change must be performed at 12 000 km (7,500 mi), and every 36 000 km (22,500 mi) thereafter. This service can be complex. See your dealer.

Pauls video:


Screen Shot 2021-05-22 at 10.11.46 PM.png
 
GM has tested these cars for years now. What they recommend is the thing to do IMO.

Me too.

Am I correct in assuming that is at 12,000Kms.

or...

"Check the dual clutch transmission fluid life per- centage. Change the fluid if needed. (4)"

"(4) every three years, whichever comes first. If the vehicle mileage is near the canister filter replacement interval, replace the fluid and filter."
 
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The canister replacement uses very little fluid. That change happens at 12000. The fluid change happens when the percentage tells you.
Some want to change it at 12000 and other than the cost, it wouldn't hurt. I'll let the filter do the talking for me. If the tech advises that it needs it when he replaces the filter, then I'll get it done.
 

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