Transmission service
08-07-2017, 10:57 AM
#81
Burning Brakes
Some Acura models have the inline trans oil filter, some do not. Some have an internal filter. It depends which year you have and which model you have.
To just make a blanket statement on any of these points under discussion is not a proper answer.
The reference to filling with 3.3 most likely means 3.3 litres. I have a TL with a 5 speed trans but it always takes 3.3 L on a drain and fill.
A quick drain only removes the oil in the lower part of the trans (sump) but does not remove the oil in the torque converter.
You get varying readings at different times because of how much atf drained from the TC into the sump when you shut off the engine.
There is also a huge variation in oil volume due to temperature alone.
Acura must have felt there was a reason to go with an inline changeable atf filter and it's hard to argue with that, but under normal conditions the trans does not produce much in the way of debris to have to be filtered out. A transmission is not as sensitive to microscopic bits of clutch material or metal in the fluid as an engine is. It does not accumulate soot from combustion like engine oil does. And atf is not subjected to the same stress as engine oil so it does not need to be changed as often. The biggest enemy of atf is heat and abuse. Abuse means doing stupid stuff like racing the engine and drivetrain to get unstuck from a snowbank or swamp e.g. If you drive normally and do not abuse your vehicle the trans needs only minimal service.
To just make a blanket statement on any of these points under discussion is not a proper answer.
The reference to filling with 3.3 most likely means 3.3 litres. I have a TL with a 5 speed trans but it always takes 3.3 L on a drain and fill.
A quick drain only removes the oil in the lower part of the trans (sump) but does not remove the oil in the torque converter.
You get varying readings at different times because of how much atf drained from the TC into the sump when you shut off the engine.
There is also a huge variation in oil volume due to temperature alone.
Acura must have felt there was a reason to go with an inline changeable atf filter and it's hard to argue with that, but under normal conditions the trans does not produce much in the way of debris to have to be filtered out. A transmission is not as sensitive to microscopic bits of clutch material or metal in the fluid as an engine is. It does not accumulate soot from combustion like engine oil does. And atf is not subjected to the same stress as engine oil so it does not need to be changed as often. The biggest enemy of atf is heat and abuse. Abuse means doing stupid stuff like racing the engine and drivetrain to get unstuck from a snowbank or swamp e.g. If you drive normally and do not abuse your vehicle the trans needs only minimal service.
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Acc20yrs (08-15-2017)
03-09-2018, 08:07 AM
#82
I thought I'd ask here first being this is a pretty good thread on the 2nd Gen RDX Transmission Fluid Change Process..
If I've over looked it, I apologize.
What is the torque specs of the drain plug?
What is the torque specs of the fill plug?
If I've over looked it, I apologize.
What is the torque specs of the drain plug?
What is the torque specs of the fill plug?
03-09-2018, 09:14 AM
#83
Okay.. I found this on the Ridgeline Owners Club
They happen to use the same part number on the crush washer, so I'm going to assume this is close enough to the proper drain-plug tightening torque.
Someone please correct this if it is wrong.
3.25-3.5 quarts Honda DW-1 for drain and fill
fill plug crush washer 24mm 90441-PK4-000
drain plug crush washer 18mm 90471-PX4-000
fill plug torque 33 ft/lbs
drain plug torque 36 ft/lbs
They happen to use the same part number on the crush washer, so I'm going to assume this is close enough to the proper drain-plug tightening torque.
Someone please correct this if it is wrong.
3.25-3.5 quarts Honda DW-1 for drain and fill
fill plug crush washer 24mm 90441-PK4-000
drain plug crush washer 18mm 90471-PX4-000
fill plug torque 33 ft/lbs
drain plug torque 36 ft/lbs
03-09-2018, 09:37 AM
#84
Okay.. I found this on the Ridgeline Owners Club
They happen to use the same part number on the crush washer, so I'm going to assume this is close enough to the proper drain-plug tightening torque.
Someone please correct this if it is wrong.
3.25-3.5 quarts Honda DW-1 for drain and fill
fill plug crush washer 24mm 90441-PK4-000
drain plug crush washer 18mm 90471-PX4-000
fill plug torque 33 ft/lbs
drain plug torque 36 ft/lbs
They happen to use the same part number on the crush washer, so I'm going to assume this is close enough to the proper drain-plug tightening torque.
Someone please correct this if it is wrong.
3.25-3.5 quarts Honda DW-1 for drain and fill
fill plug crush washer 24mm 90441-PK4-000
drain plug crush washer 18mm 90471-PX4-000
fill plug torque 33 ft/lbs
drain plug torque 36 ft/lbs
me personally when working with crush washers i tighten down until it cant any further. While its not exact you will find many experienced mechanics dont bother with torque specs on bolts that dont provide clearance for bearings. (for example Torq specs and sequence is really important for assembling a head to a block, Rods to the crank, etc) no so much for your drain bolt.
03-09-2018, 10:05 AM
#85
What you say is true for an experienced mechanic.. ..You sort of get "The Feel" for what is the right tightness. I can do this with the products I work my everyday job at. But I don't do these often enough to feel certain that I'm close enough. Plus the specs are available, might as well use them not being an experienced mechanic...
04-05-2018, 09:31 AM
#87
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transmission fluid total capacity
Anyone knows the total transmission fluid capacity on a 2015 RDX AWD ?
The reason I ask is I'm going to do a transmission fluid drain and fill.
I'll do the normal drain from the drain plug then fill in the dipstick.
Instead of doing the 3x3, I'll disconnect one of the hose and start the car for 30 seconds or so and let the ATF drain from that tube, and refill the same amount through the dipstick.
need to know how much should I expect to come out before it is clean.
The reason I ask is I'm going to do a transmission fluid drain and fill.
I'll do the normal drain from the drain plug then fill in the dipstick.
Instead of doing the 3x3, I'll disconnect one of the hose and start the car for 30 seconds or so and let the ATF drain from that tube, and refill the same amount through the dipstick.
need to know how much should I expect to come out before it is clean.
04-05-2018, 01:03 PM
#88
Anyone knows the total transmission fluid capacity on a 2015 RDX AWD ?
The reason I ask is I'm going to do a transmission fluid drain and fill.
I'll do the normal drain from the drain plug then fill in the dipstick.
Instead of doing the 3x3, I'll disconnect one of the hose and start the car for 30 seconds or so and let the ATF drain from that tube, and refill the same amount through the dipstick.
need to know how much should I expect to come out before it is clean.
The reason I ask is I'm going to do a transmission fluid drain and fill.
I'll do the normal drain from the drain plug then fill in the dipstick.
Instead of doing the 3x3, I'll disconnect one of the hose and start the car for 30 seconds or so and let the ATF drain from that tube, and refill the same amount through the dipstick.
need to know how much should I expect to come out before it is clean.
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wsw (07-12-2020)
07-15-2020, 06:03 PM
#90
Just do a normal drain and fill. If you have a reason to want all fresh fluid, then do that three times with driving in between. Actual driving, not just around the bock.
The trans must go through all the gears (including reverse) and the torque converter must lock up. So it's out on the highway. One way to DYI a full fluid change is to
just do normal drain & fills each weekend.
The maintenance minder will set a code for a fluid change every 4th or 6th oil change. The code is 3. I think the interval for these little SUVs is 45k (6th oil change)
But Honda has shortened that to every 30k (4th oil change) on their heavier vehicles that use this drive train. Like Odysseys, Pilots, Ridgelines, and probably(?) the MDX.
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hongthan (04-26-2022)
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