FL5 engine oil dilution

[EJBFL52023]

I'm not a mechanic but I have had numerous Honda's for over 35 years. In addition to the 2023 Type R with 22k on it I purchased new, I also own a 2018 Honda CRV. The Earth Dreams engine in the CRV has a known oil dilution issue. My non-mechanic experience is that clearly smelled fuel in the oil of CRV with it's oil dilution problem. I've not smelled that in the Type R despite the appearance of clear "thin" oil on dipstick. I always do the oil change at Honda dealer using their 0W20 oil. My guess is if you aren't smelling fuel in oil you're car is fine even though it appears clear and thin. I waited until maintenance minder indicated oil change was due last time and although a bit dirty in appearance the oil was still not showing that thick dark black color nor smelling if fuel.

Hope this helps.

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[Samurai1225]

Attached is my latest Blackstone analysis. As I stated they use flashpoint to determine fuel contamination. The flashpoint in my sample was above the minimum temp that it should be so they say the sample is not suffering from major fuel dilution.

 

[V3N0M_VZL4]

Attached is my latest Blackstone analysis. As I stated they use flashpoint to determine fuel contamination. The flashpoint in my sample was above the minimum temp that it should be so they say the sample is not suffering from major fuel dilution.

Nice results I'll be switching to liquimoly 5W30 in my next oil change in about 2 weeks, I live in South Florida and the stop and go traffic is insane even worse with 80°+ degrees ambient temp plus humidity, I'll be sending a sample to Blackstone as well with my current oil 5W20.

 

[Samurai1225]

Nice results I'll be switching to liquimoly 5W30 in my next oil change in about 2 weeks, I live in South Florida and the stop and go traffic is insane even worse with 80°+ degrees ambient temp plus humidity, I'll be sending a sample to Blackstone as well with my current oil 5W20.

I just switched to HPL Premium Plus 0w-30.

 

[Websitesdown]

I used Blackstone. They'll send you the test kit for free, and then you pay when they do the test.

Ordered my kit but, this is what it looks like at 4,930 miles. I did the recall today too. My buddy who's the dealers master mechanic did the recall fix and the oil change in about 40 minutes.

 

[PointByPatrol]

That

Ordered my kit but, this is what it looks like at 4,930 miles. I did the recall today too. My buddy who's the dealers master mechanic did the recall fix and the oil change in about 40 minutes.

That looks yucky

 

[Websitesdown]

That
That looks yucky

Right~! Good thing I only went to 5k~.

 

[PointByPatrol]

Right~! Good thing I only went to 5k~.

Start changing more frequently for sure!

 

[Websitesdown]

Start changing more frequently for sure!

I mostly travel to work on the highway but, I live in a city so short trips happen as well, and my guess would be that's what's doing it is the short trips. I let it warm up for about a minute, drive easy until she warms up, I'll see what blackstone says eventually. I just ordered their kit. I should've ordered it when you said something.

 

[qingcong]

Right~! Good thing I only went to 5k~.

Seriously though, you can't judge the oil based on how it looks or smells, unless it's gummed up or something. I've heard before that you should be worried more if the oil is super clean looking because then it may not be clearing out all the junk from the engine.

 

[Websitesdown]

Seriously though, you can't judge the oil based on how it looks or smells, unless it's gummed up or something. I've heard before that you should be worried more if the oil is super clean looking because then it may not be clearing out all the junk from the engine.

I did read that the oil being dark brown or black can mean it's still doing its job. That's what I'm thinking. I'll see what blackstone says but, yeah it was getting a little dark for my liking at the same time. I usually change mine around 5k though on my vehicles and always use full synthetic and a good filter as well. I have two more free oil changes from Honda then I'll be doing my own at that point.

 

[Catanzaro]

I wanted to update everyone on the 2024 Honda Civic 1.5 Turbo.

Originally, I had changed the oil at 2,339 miles as part of a break-in. New oil and filter, and exactly 3.7 quarts, and that is what came out. No oil smell or even a surplus after the drain.

Skip ahead to 6,749 miles, or 4,410 miles later, I had the dealer change the oil under the free oil change.

Now, the winter rolls around, and then into spring, with some time constraints on changing the oil. So I waited until the 20% mark and went in for another free oil change (last one), which was 7,676 miles later and at 14,425.

Given that the oil was dark, I checked the level and it appeared to me high on the dipstick, and also a smell of gas. I asked the dealer, and the tech stated that because of the cold weather, the ECM compensates for something. Their take was that they made sure that it had been filled to 3.7 quarts, and that is it.

THE RECEIPT: The receipt from the Hond Dealer had shown 5 BULKOW20 BULK OIL OW20 & I remember calling them. The service department stated that that is what they write. It could have been overfilled to more than 4 quarts, and they billed out 5 quarts. The 2.0, I believe, takes a little north of 4 quarts or right around there? It was hard to check the dipstick with the orange color and clean oil.


Question: Can I go 5,000 miles between oil changes, or should I limit to 4,000 miles? The cost associated with the oil changes is negligible and right around $30. The dealer would be almost $80-$90 (not sure). I want to keep this car for as long as possible.

I do not want to wait until I reach 20% to change the oil, or 7,500 +/- miles. If I wait too long, I may not have time to change it, which will put me in the 8,000 to 9,000 mile range. Given my driving habits are 90% highway and long, so there should not be an oil dilution issue (I think?).

Thoughts? Thank you in advance.

 

[Rhorn]

I wanted to update everyone on the 2024 Honda Civic 1.5 Turbo.

Originally, I had changed the oil at 2,339 miles as part of a break-in. New oil and filter, and exactly 3.7 quarts, and that is what came out. No oil smell or even a surplus after the drain.

Skip ahead to 6,749 miles, or 4,410 miles later, I had the dealer change the oil under the free oil change.

Now, the winter rolls around, and then into spring, with some time constraints on changing the oil. So I waited until the 20% mark and went in for another free oil change (last one), which was 7,676 miles later and at 14,425.

Given that the oil was dark, I checked the level and it appeared to me high on the dipstick, and also a smell of gas. I asked the dealer, and the tech stated that because of the cold weather, the ECM compensates for something. Their take was that they made sure that it had been filled to 3.7 quarts, and that is it.

THE RECEIPT: The receipt from the Hond Dealer had shown 5 BULKOW20 BULK OIL OW20 & I remember calling them. The service department stated that that is what they write. It could have been overfilled to more than 4 quarts, and they billed out 5 quarts. The 2.0, I believe, takes a little north of 4 quarts or right around there? It was hard to check the dipstick with the orange color and clean oil.


Question: Can I go 5,000 miles between oil changes, or should I limit to 4,000 miles? The cost associated with the oil changes is negligible and right around $30. The dealer would be almost $80-$90 (not sure). I want to keep this car for as long as possible.

I do not want to wait until I reach 20% to change the oil, or 7,500 +/- miles. If I wait too long, I may not have time to change it, which will put me in the 8,000 to 9,000 mile range. Given my driving habits are 90% highway and long, so there should not be an oil dilution issue (I think?).

Thoughts? Thank you in advance.

Would not at all worry about fuel dilution until you can objectively see it on a oil report (dont use Blackstone) I believe the standard is to have 2.4% or less of fuel in oil for most cars anything above that is a problem.

For oil I would say to use Mobil-1 ESP because it is specifically formulated to reduce carbon buildup and fuel dilution in modern GDI engines.

Lowering your oil change interval is always better.

 

[Catanzaro]

I figured every 4,000 miles with Mobil 1 OW-20 and OEM oil filter, and call it a day.

This way, I never have to worry about anything else. I usually purchased a 6-pack (1 Quart) from Costco, delivered on sale for about $5.60 per quart.

Oil changes would be approximately every 4 months, given I drive about 12,000 miles per year. I have other vehicles I am in, so they are on a different schedule.

I will look into the Mobil 1-ESP motor oil. Thank you.

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