Under Valve Cover 2017 Accord 2.4L 130k miles

[Sequoiasoon]

So is this "Earth Dreams" engine really the same old K24 or something new and different?

I wouldn't be using 0W-20 and expecting it not to burn oil. I'd increase the sauce to 5W-30 at least.

It burned the same amounts on 5W-30 and 0W-40.

I'm doing the Valvoline Restore and Protect 0w20 actually for a little thinner to maybe get into/behind the rings a bit easier for at 4 OCI's maybe more. After that will probably be back on 5W-30, probably Valvoline Restore and Protect, maybe others to use up stash. Then maybe play BITOG Bingo and try some Mobil 1 ESP 0w-30 or if reviews come back by then, the Advanced Clean.

Devils advocate - millions using 0W-20 have no issues reaching hundreds of thousands miles with no burning or wear. I do think my 6MT driving style plays more into the burning issue. In my neighborhood 2nd gear may go to 5000 rpm or more and then engine braking to stop signs still in gear until right before stop. Off ramp/service road daily may be at 4500 rpm, slowly coming down for a 1/4 mile to stop light.

 

[TomYoung]

"Earth Dreams" is the nomenclature developed by Honda marketing around 2020 to distinguish their fuel saving technology. Specifically, for the platforms using the K24 engine, it means Direct Injection and CVTs. However, the "Earth Dreams Technology" encompasses other Honda mileage enhancing strategies, including Hybrids, diesels and EVs.

Earth Dreams started in 2011.

 

[Nukeman7]

Earth Dreams started in 2011.

I stand corrected as the linked article cites 2020 as their date to reach the Earth Dream emissions target goals across the product line. I should have known that since I routinely service a 2015 CR-V with the Earth Dreams K24 engine and CVT.

 

[demarpaint]

Keep doing what you're doing.

 

[Sequoiasoon]

All back, running well but was before also, really can't tell any difference. At least I know it was done and have a new VCG. Spark plug tube seals are part of valve cover so those were not done this time.

All valves were tight including intake which the technician said rarely happens on ones he has done. My stuff like always, just gotta be a little bit different.

Cylinders 1 and 3 of my intake valves were .20 mm. 2 and 4 were .21 mm. He set them all to .22 mm

Cylinders 1 and 2 on exhaust valves were .24 mm. 3 and 4 were .25 mm. He set them all to .28 mm

 

[Exhaustgases]

.2 mm =.0078
.21mm =.0082
.22mm=.0086
.24mm=.0094 inches this side
.25mm=.0098
.28mm=.0110

Your welcome

 

[Devo242]

It burns some oil, about 1.5-2qts in 5000 miles,

Curious what octane fuel you typically use. I have the same year / drivetrain combo and I use very little oil between my ~5k intervals, if any at all. Miles are split evenly between city and highway.

I use 89 octane as standard (E0, but I doubt that matters much) as the compression on the K24W1 motor is 11.1:1 so I am of the belief it benefits from a higher AKI.

Nothing scientific here, just my observations.

 

[Sequoiasoon]

Curious what octane fuel you typically use. I have the same year / drivetrain combo and I use very little oil between my ~5k intervals, if any at all. Miles are split evenly between city and highway.

I use 89 octane as standard (E0, but I doubt that matters much) as the compression on the K24W1 motor is 11.1:1 so I am of the belief it benefits from a higher AKI.

Nothing scientific here, just my observations.

Almost exclusively 87 octane but not seeing how that would impact oil use. How spirited do you drive it? Do you put in neutral or keep clutch in when coming to stop signs etc? Do you downshift coming off highways etc.?

 

[JeffKeryk]

They also have oil consumption problem if one is not worried about that.

I've heard that, but our '06 TSX has 245K miles on the clock; checking the oil is a waste of time. She doesn't use a drop. I've serviced other similar TSXs that used a little between 5K changes, and they had far less miles.

 

[Devo242]

Almost exclusively 87 octane but not seeing how that would impact oil use. How spirited do you drive it? Do you put in neutral or keep clutch in when coming to stop signs etc? Do you downshift coming off highways etc.?

My thought process was that the engine detected knock and dialed back timing and / or enriched the fuel trim, possibly causing a bit of oil to wash out with fuel and burn. Again, just a thought. I have fun with mine by winding it out on each drive, but nothing too aggressive. I don't downshift when coming to a stop, I'll leave it in the gear it was in and let the engine slow the car down. The difference in yours and mine as far as consumption could simply be attributed to driving style, difference in overall miles, or a combination of factors.

Here is my last UOA I pulled this past May in case you would like to see for comparison:

Thread 'Red Line 0W-20 5k mi; '17 Accord Sport 59.8k mi'

May 10, 2025

I had not run a used oil analysis on my Accord as of yet and wanted to see how the motor is aging as it prepares to turn over 60k miles. A few points of note for reference in case anyone prefers more details:

• Red Line 0W20 has been run in the engine exclusively for the past 30k miles at appx the same interval so there should be no remnants from another brand to skew additive levels
• Car is run exclusively on 89 octane ethanol-fuel (E0) - I noted this fact to Blackstone but they made no comment on it (no idea if E10 would show differently or not)
• Car is a 6 speed manual and sees...

• Devo242
• Replies: 13
• Forum: Used Oil Analysis - Gasoline

• 
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[Sequoiasoon]

.2 mm =.0078
.21mm =.0082
.22mm=.0086
.24mm=.0094 inches this side
.25mm=.0098
.28mm=.0110

Your welcome

Factory manual for mine lists:

Valve Clearance
Intake: 0.21 -0.25 mm (0.009 - 0.009 in)
Exhaust: 0.25 - 0.29 mm (0.010 - 0.011 in)

Obviously subjective to feel but metric feeler gauges possibly give a bit more option for the amount of drag experienced.

 

[KrisZ]

Wow, Honda still using manual valve lash adjusters.
Holy cow, they’re stubborn.

 

[Pablo]

Why wouldn’t a 2017 be perfectly clean? Confused.

 

[TomYoung]

So is this "Earth Dreams" engine really the same old K24 or something new and different?

I wouldn't be using 0W-20 and expecting it not to burn oil. I'd increase the sauce to 5W-30 at least.

Don’t know that burning oil is specifically caused by thinner oils.

 

[Exhaustgases]

Factory manual for mine lists:

Valve Clearance
Intake: 0.21 -0.25 mm (0.009 - 0.009 in)
Exhaust: 0.25 - 0.29 mm (0.010 - 0.011 in)

Obviously subjective to feel but metric feeler gauges possibly give a bit more option for the amount of drag experienced.

View attachment 325499

And really? .021mm is the same as .025mm in the photo above? I posted what it is in imperial in my conversion.
Just goes to show you can not always trust a manual for information.

 

[Sequoiasoon]

Why wouldn’t a 2017 be perfectly clean? Confused.

Because not everyone uses Amsoil or other quality oils and they don't always change that on a regular basis.

I was using Mobil 1 or Pennzoil Platinum almost always and didn't go past MM of about 7500 miles. The other cars in my fleet are shorter tripped so just dropped this to about 5k intervals to match and by 5k I've added 2 quarts as of current usage. We'll see if the Valvoline Restore and Protect improves it any.

 

[Sequoiasoon]

And really? .021mm is the same as .025mm in the photo above? I posted what it is in imperial in my conversion.
Just goes to show you can not always trust a manual for information.

maybe because .008 and .010 are just outside of specification range so they can't recommend that?