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

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.

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.

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.

I thought this was going to be talking about Honda's Formula 1 engine program... :)

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.

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

Mid 11's sounds like a waste of fuel on a DI motor to me.

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.

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.