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Honda's Not Doing So Hot Right Now

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Old Feb 1, 2019 | 09:11 AM
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Honda's Not Doing So Hot Right Now

Came across this interesting article I thought I share https://jalopnik.com/hondas-not-doin...now-1832260124
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Old Feb 1, 2019 | 09:39 AM
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They're also having oil dilution issue's in the 1.5L DI turbo motors. Getting lots of fuel in the crankcase, and they can't figure out. Current TSB is change the oil and an ECU reflash that doesn't work.
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Old Feb 1, 2019 | 11:47 AM
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Interesting....Wonder if Honda runs their AFR just as rich as was in my stock Evo IX? Remember my oil looked black after 3K and smelled like fuel. White bumper covered in soot.

Also wondering if they are running the fuel mileage 0W oils. I know that would promote blow by.
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Old Feb 1, 2019 | 02:03 PM
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The oil level actually grows, that's how bad it is. Oil weight might maybe having something to with oil consumption/oil getting past the rings. But it has nothing to do with fuel in the oil.
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Old Feb 1, 2019 | 11:30 PM
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I thought this was going to be talking about Honda's Formula 1 engine program...

Last edited by moparfan; Feb 2, 2019 at 10:22 AM.
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Old Feb 2, 2019 | 08:41 AM
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Originally Posted by whtrice
Interesting....Wonder if Honda runs their AFR just as rich as was in my stock Evo IX? Remember my oil looked black after 3K and smelled like fuel. White bumper covered in soot.
No. They’re DI, they run crazy lean in comparison.
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Old Feb 2, 2019 | 11:25 AM
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Originally Posted by Noize


No. They’re DI, they run crazy lean in comparison.


https://www.lubricants.total.com/fue...es-and-effects

"What happens when the fuel is not fully burned off in the combustion chamber? The answer to this question is also the cause of certain breakdowns, i.e. that the fuel tends to flow towards the crankcase. In fact, it flows down through the piston skirt towards the crankcase, where it mixes with the engine oil."

DI kinda reminds me of a dog peeing on the patio porch.....exaggerated of course..... On cold start ups those injectors hit the cool piston porch at point blank range. Evidence seems to show it migrates past rings and piston walls ending in the crank case.
Originally Posted by letsgetthisdone
Oil weight might maybe having something to with oil consumption/oil getting past the rings. But it has nothing to do with fuel in the oil.
Oil dilution has to exacerbate the problem as oil viscosity decreases with more dilution. Oil is still an important part in this. I know less viscosity will
only promote the problem.

3:24 starts the discussion.

Last edited by whtrice; Feb 2, 2019 at 11:35 AM.
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Old Feb 2, 2019 | 02:54 PM
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Originally Posted by whtrice
https://www.lubricants.total.com/fue...es-and-effects

"What happens when the fuel is not fully burned off in the combustion chamber? The answer to this question is also the cause of certain breakdowns, i.e. that the fuel tends to flow towards the crankcase. In fact, it flows down through the piston skirt towards the crankcase, where it mixes with the engine oil."

DI kinda reminds me of a dog peeing on the patio porch.....exaggerated of course..... On cold start ups those injectors hit the cool piston porch at point blank range. Evidence seems to show it migrates past rings and piston walls ending in the crank case.
I don’t dispute that at all, only the part I quoted. At WOT, the 1.5 is in the mid 11s due to being DI. The Type R and Accord 2.0T are also DI, run lean at WOT, and have no issues with oil dilution.
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Old Feb 2, 2019 | 04:39 PM
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Mid 11's with DI is lean? Lol, my MK7 Golf ran stoich (14.7 AFR) at 12psi @ WOT when stock.

Now with E35 and a tune, I run it at 12.50 AFR, 18psi @ WOT

Stock:
https://datazap.me/u/razorlab/alltra...1-18&solo=4-18

Tuned on E35:
https://datazap.me/u/razorlab/alltra...8&zoom=226-428
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Old Feb 2, 2019 | 05:37 PM
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Originally Posted by razorlab
Mid 11's with DI is lean? Lol, my MK7 Golf ran stoich (14.7 AFR) at 12psi @ WOT when stock.

Now with E35 and a tune, I run it at 12.50 AFR, 18psi @ WOT

Stock:
https://datazap.me/u/razorlab/alltrackjb491oct?log=2&data=1-4-11-18&solo=4-18

Tuned on E35:
https://datazap.me/u/razorlab/alltracke35ecudsgtunewot?log=1&data=1-4-9-18&solo=9-18&zoom=226-428
Lean compared to most stock mapped turbo port injected cars, I would say. My stock X was so rich, the dyno’s WB couldn’t even pick it up. Granted much richer than my stock IX was.

My only point was that he “wondered if Honda runs the Si as rich as my stock IX?” My answer would be no since it’s a DI car, even though it runs richer than most. Probably part of the reason the Si makes 55whp and 75wtq from a remap only. Impressive to me from a tiny 1.5 liter car.
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Old Feb 2, 2019 | 07:36 PM
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Mid 11's sounds like a waste of fuel on a DI motor to me.
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Old Feb 2, 2019 | 09:45 PM
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Originally Posted by Noize


No. They’re DI, they run crazy lean in comparison.
Originally Posted by whtrice
Interesting....Wonder if Honda runs their AFR just as rich as was in my stock Evo IX? Remember my oil looked black after 3K and smelled like fuel. White bumper covered in soot.

Also wondering if they are running the fuel mileage 0W oils. I know that would promote blow by.
Honda's have always run lean, From what I've seen. I think I remember cruising in the 16-17 range. No wonder they get such great mileage.
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Old Feb 4, 2019 | 12:33 AM
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Originally Posted by whtrice
https://www.lubricants.total.com/fue...es-and-effects

"What happens when the fuel is not fully burned off in the combustion chamber? The answer to this question is also the cause of certain breakdowns, i.e. that the fuel tends to flow towards the crankcase. In fact, it flows down through the piston skirt towards the crankcase, where it mixes with the engine oil."

DI kinda reminds me of a dog peeing on the patio porch.....exaggerated of course..... On cold start ups those injectors hit the cool piston porch at point blank range. Evidence seems to show it migrates past rings and piston walls ending in the crank case.Oil dilution has to exacerbate the problem as oil viscosity decreases with more dilution. Oil is still an important part in this. I know less viscosity will
only promote the problem.

3:24 starts the discussion.
The viscosity of the oil has nothing to do with fuel getting into the oil.
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Old Feb 7, 2019 | 09:05 PM
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Originally Posted by letsgetthisdone
The viscosity of the oil has nothing to do with fuel getting into the oil.
Yeah, but fuel in the super thin oils makers now specify can quickly lead to problems.
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Old Feb 8, 2019 | 09:30 AM
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Originally Posted by barneyb
Yeah, but fuel in the super thin oils makers now specify can quickly lead to problems.
Luckily these engines are designed for super thin oils (like the crazy new stuff wanting 0w16 LOL), so just like an engine designed for thicker oil, a little thinning isn't imminent death. But I agree with the sentiment none the less. I'm just trying to make it clear that the thinner oils aren't what cause blow by and fuel to be present in the oil.

And just like what is considered more "regular" oil weights, the same percentage's of dilution are still considered acceptable (<2.5% for gas engines). The problem Honda is having goes beyond that though, as oil volume literally grows so obviously that's way more than 2.5% dilution LOL.

Its probably a combination of fueling strategy that needs to be redone, and the oil not getting up to temp to boil the fuel out of it on shorter trips, and colder climates. Could also be a ring package that isn't working as intended in the real world. Last time I checked on it, Honda hasn't released a solution. I've been following it closely because my sister has a '16 civic with the L15t.
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