1 liter gas in engine oil dilution

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Old Nov 26, 2024 | 06:13 PM
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1 liter gas in engine oil dilution

It's RDX 2022 with like 5k KM per year (less than 13K KM by now)
Last oil change was April 2024, but I notice almost 6L engine oil drained out today. It's about 1L for 7 warm months with less than 4K KM!

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Old Nov 26, 2024 | 06:17 PM
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probably switch to 5w30 as well
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Old Nov 27, 2024 | 04:44 PM
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I'm switching to 5w30 as well when it's time. I just did an oil change at the dealer (my 1 freebie since I bought the car from them earlier in the year) and sent the oil out for an analysis with Oil Analyzers/AMSOIL.

Oil did smell of gasoline but didn't measure high on the dipstick. I plan to do all the routine maintenance myself from here on out.
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Old Nov 27, 2024 | 07:41 PM
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Originally Posted by Jackal
It's RDX 2022 with like 5k KM per year (less than 13K KM by now)
Last oil change was April 2024, but I notice almost 6L engine oil drained out today. It's about 1L for 7 warm months with less than 4K KM!
Is your stated mileage correct? 5 km a year is about 3100 miles so you are barely using the vehicle. Dilution to some degree occurs in these engines but frequent short trips does nothing to burn off the fuel in the oil.
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Old Nov 28, 2024 | 06:41 AM
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Its excessive fuel dilution, even with normal driving that is 30-40min or more these cars will have 4-5% of fuel. I would change oil twice a year if you dont drive that much and make sure to take longer trips. Use 5w-30 only
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Old Dec 5, 2024 | 11:36 AM
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Oil Analyzers came back with >5% fuel in the oil from my sample. This sample was taken from the oil that was in the car sitting on the dealer lot for 5 months until I bought the car in late April 2024 and put 6k miles on it. The dealer got the car in early Dec 2023. So between the cold weather and short driving (test drives, moving around the lot, etc.) for 5 months, I am hoping for a more favorable report after the next 5k miles. I do have the AcuraCare for another 4.5 years and about 60k more miles so I feel like that was a good buy just in case.
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Old Dec 5, 2024 | 12:17 PM
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Originally Posted by Optical Toxin
Oil Analyzers came back with >5% fuel in the oil from my sample. This sample was taken from the oil that was in the car sitting on the dealer lot for 5 months until I bought the car in late April 2024 and put 6k miles on it. The dealer got the car in early Dec 2023. So between the cold weather and short driving (test drives, moving around the lot, etc.) for 5 months, I am hoping for a more favorable report after the next 5k miles. I do have the AcuraCare for another 4.5 years and about 60k more miles so I feel like that was a good buy just in case.
It will get slightly better, but not much, I ended up with 4% with mostly highway. Maybe you will have better luck
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Old Dec 26, 2024 | 05:52 PM
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while top up battery with charger today, I noticed there's some weeping oil around the engine. looks like some gasket failed. probably need to contact Acura for warranty repair? it's only 2 years with less than 10K miles.


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Old Dec 26, 2024 | 06:05 PM
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There was someone reporting cracked engine block, is it oil or coolant?
take it to dealer and let us know
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Old Sep 22, 2025 | 12:34 PM
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For the past 10 months, I drove this car as much as possible. when i did oil change yesterday, there's not much oil dilution now, still strong gas smell though.
so basically if you only drove short trips, oil dilution is really bad, even in summer time.
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Old Sep 22, 2025 | 12:40 PM
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Originally Posted by Jackal
For the past 10 months, I drove this car as much as possible. when i did oil change yesterday, there's not much oil dilution now, still strong gas smell though.
so basically if you only drove short trips, oil dilution is really bad, even in summer time.
Did not help me, I had 90% of highway driving with 40min trips, and fuel was still 5%.

maybe if you have 100% highway
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