How to change Transmission Oil on 1.5T CVT

cuscio

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hi, I ordered this oil, can you tell me if it's okay? Honda cvt-fluid

Honda Civic 10th gen How to change Transmission Oil on 1.5T CVT ZmUzZWZjOS5qcGd8fHx8fHwyOTV4NTI1fGh0dHA6Ly93d3cuYWR2ZXJ0cy5pZS9zdGF0aWMvaS93YXRlcm1hcmsucG5nfHx8
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Honda Civic (USA) release 2015 - 2020. These cars, in addition to the turbocharged 1.5 engine (models L15B7), are also equipped with a Honda CVT model LL-CVT, but of various modifications MCKA

Honda Civic 10th gen How to change Transmission Oil on 1.5T CVT ugAAAgJGE-A-960


Honda Civic 10th gen How to change Transmission Oil on 1.5T CVT mgAAAgDX_eA-960


The CVT is a very gentle transmission. Frequent oil change in the variator (CVT) - significantly increases the residual transmission resource.

Oil change intervals are once every 40,000 km. In the instruction manual (in the manual - https://owners.honda.com/vehicles/information/2019/Civic-Hatchback/manuals ) it is written verbatim:

"…Driving in mountainous areas at very low vehicle speeds results in higher transmission temperatures.
This requires transmission fluid changes more frequently than recommended by the Maintenance
Minder. If you regularly drive your vehicle under these conditions, have the transmission fluid changed
every 25,000 miles (40,000 km)."


Replacement is very simple. The variator (cvt) pan is removed, the pan gasket, the coarse filter (in the pan) are changed. And behind the oil cooler (it is on the side of the variator, the diagrams below explain and show in detail) the variator fine filter changes.

Catalog numbers of original consumables:

1. Coarse filter (Strainer Assy) - 25420-5LJ-003 (aka number 254205LJ003)
2. The fine filter behind the oil cooler (Filter) - 25450-P4V-013
3. The laying of the pallet (Gasket, oil pan) - 21814-RJ2-003
4. Recommended oil - Honda HCF-2. The volume during the shift is 3.7-3.9 QTS (this is 3.5 - 3.7 liters).

more detailed information (with diagrams, photographs) is here - https://www.drive2.ru/o/b/558428487803732121/


O-rings (gaskets).

A) Ideally, also change small gaskets (o-rings) under the fine filter. They are lower in the diagram under numbers 3, 4, 5 -

Honda Civic 10th gen How to change Transmission Oil on 1.5T CVT WAAAAgPaE-A-960


№ 3 — 25564-5LJ-A01
№ 4 — 25565-5LJ-A01
№ 5 — 91305-PN4-003

Honda Civic 10th gen How to change Transmission Oil on 1.5T CVT SIAAAgE6E-A-960


At the same time, it’s interesting - if you buy an original (!) Fine filter (25450-P4V-013) then these same o-rings (under No. 4 and No. 5 in the diagram above) are not included with the filter. They go separately (therefore, they also have other catalog numbers). But if you buy a non-original fine filter, then these two o-rings (numbered 4 and 5) usually go together (in a set) with a non-original filter. It seems to be a profitable solution. But there is an important point. These most non-original sealing rings are smaller (do not correspond in thickness), so if there is a choice, it is better not to put them. Here is a comparison photo -

Honda Civic 10th gen How to change Transmission Oil on 1.5T CVT TwAAAgG6E-A-960


If you buy an original coarse filter (25420-5LJ-003), then this gasket (O-ring, it is lower in the diagram under No. 11) comes with the filter in the kit. But if you buy a "non-original" filter, then this ring is not. And it is also desirable to change it. It has the number 91308-5LJ-003. Here below in the photo according to the scheme of what is at stake:

Honda Civic 10th gen How to change Transmission Oil on 1.5T CVT gwAAAgM6E-A-960


CVT Oil LL-CVT

Oil for CVT models LL-CVT (MCKA, BA7A, BRHA, BRGA) is used only (!) Honda HCF-2 specification. It is necessary (for replacement) only 3.7 liters.
The original oil, depending on the market for sale, has different packaging and different catalog numbers. Here we have specially collected the articles for you:

1. HONDA Article: 0826099964. Capacity: 4 L, (metal canister)
2. HONDA Article 0826999905HE. Capacity: 4 L, (plastic canister)
3. HONDA Article 08200HCF2 Capacity: 0.96 l. (plastic canister)

Honda Civic 10th gen How to change Transmission Oil on 1.5T CVT fQAAAgKKE-A-960


Of the non-original oils that are specially (!) Created by one or another manufacturer for the Honda HCF-2 specification, today these are oils from Ravenol (RAVENOL HCF-2 Fluid), they have the numbers 1211142-001 (1 liter), 1211142-004 (4 liters) and 1211142-020 (20 liters) -

Honda Civic 10th gen How to change Transmission Oil on 1.5T CVT 14AAAgAaE-A-960



There are also other manufacturers that produce "universal fluids" for CVTs, which (note that "according to the manufacturers' data") also comply with Honda HCF-2 specifications. How true this is is no information. Here it is more likely a question of consumer confidence in a particular brand.

more detailed information (with diagrams, photographs) is here - https://www.drive2.ru/o/b/558428487803732121/
 


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bubbaleenc

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I'm interested in knowing this too.
I'm changing mine again this weekend - I am at about 90k miles now. I change mine every 30k. I'm no grandpa when I drive, but I'm not racing either - so 30k should be sufficient.
 

Dario1101

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I'm changing mine again this weekend - I am at about 90k miles now. I change mine every 30k. I'm no grandpa when I drive, but I'm not racing either - so 30k should be sufficient.
Lovely! Are you also changing the filter inside the transmission oil pan?
 


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bubbaleenc

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Lovely! Are you also changing the filter inside the transmission oil pan?
Not at this time. I might do it at 150 or if I see anything concerning in the oil.

Unlike With engine oil, there isn’t any combustion in the CVT case to cause deposits to form and thus require major filtration. The filtration in the CVT catches suspended materials, but the design of the filter allows those materials to be flushed out as the oil is drained against the filter. There certainly will be some adherence to the filter matrix, and over time it will reduce the flow of oil - but classically the AT or CVT filter lasts the life of the vehicle as long as the AT or CVT Oil is regularly changed.
 

Dario1101

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Not at this time. I might do it at 150 or if I see anything concerning in the oil.

Unlike With engine oil, there isn’t any combustion in the CVT case to cause deposits to form and thus require major filtration. The filtration in the CVT catches suspended materials, but the design of the filter allows those materials to be flushed out as the oil is drained against the filter. There certainly will be some adherence to the filter matrix, and over time it will reduce the flow of oil - but classically the AT or CVT filter lasts the life of the vehicle as long as the AT or CVT Oil is regularly changed.
Thanks so much for that write-up! I feel happy knowing that all I need to do is just change the CVT oil and not open up that pan to get at the interior filter! :)
 
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bubbaleenc

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Thanks so much for that write-up! I feel happy knowing that all I need to do is just change the CVT oil and not open up that pan to get at the interior filter! :)
Glad to help - TBH, it was also a writeup for myself so I can do it more quickly after the first time. With all the bolts and plugs under the tranny it is easy to get crossed up.

As an aside, The change I did went smoothly. The fluid actually smelled less pungent than the 60k change - in fact it didn't smell much different than the fresh CVT oil in the bottles which is probably a very good sign. The color may have been ever so slightly darker, but it wasn't significant. The drain plug magnet had a minimal amount of residue, but nothing coarse or worrisome when I wiped it clean. The total volume of change was about 4 1/4 quarts - I didn't closely measure the amount removed, but replaced the oil with 4 1/2 quarts; when I opened the check plug perhaps 1/4 quart or so came out.

After doing this a couple times now, I see no good reason to pay the dealership for the job. The time it takes to DIY is less than driving to the shop, waiting for them to do it (even if they did it right away) and driving back home. And the cost savings is significant. I used Honda's HCF-2 again, but next time I'll definitely try the Amsoil.
 

xjoshuax89

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I'm on my 3rd replacement. After doing hcf2 from honda I decided to try out eneos.
 

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I changed the CVT fluid yesterday to amsoil CVT at 41,000KMs (about 25,000 miles). I’ve driven the car about 100kms a mix of 60% highway 40% city (60miles) so far so good, drives normal and no issues that I can feel.

I spoke to three different mechanics from three different shops they assured that it wasn’t an issue to mix Honda’s HCF2 with any other reputable oil brands as long as it meets the manufacturer’s requirement! One of the workshop I went was rebuilding a Nissan Elgrand’s CVT and it wasn’t due to the use of wrong oil; but owner’s neglect 150,000km (93000miles) no trans fluid change.

I saw other Honda’s (Odyssey, Stream) use Motul CVT and it seems to being doing them good.
How much are you guys paying for the honda HCF2 fluid from the dealer? I decided to do this myself since the dealer wants to charge $219 for a drain and fill service.
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