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1.5L Honda turbo oil dilution #4715610 04/03/18 09:57 PM
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Highkm Offline OP
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1st oil change on 2017 Honda CR-V 1.5l turbo. Note the level of fuel in oil. I has 20% of oil life before I changed the oil. I did very few short trips I.e less than 10km about 20 times in 11,000 Kimís. I would say that Honda should limit the first use of oil to 5000kms otherwise the viscosity goes below acceptable levels. What do you think?

Last edited by Highkm; 04/03/18 10:09 PM. Reason: Missing info
Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715622 04/03/18 10:11 PM
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Highkm Offline OP
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Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715632 04/03/18 10:26 PM
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PimTac Offline
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There are lots of threads here regarding this engine and fuel dilution. I would go no more than 5000 miles on any oil.


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Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715637 04/03/18 10:42 PM
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I would of changed FF at like 1-2k miles but thats just me. Why not try 8000 miles and re-test? My guess is around 8k your visc will have dropped to just about threshhold.


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Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715642 04/03/18 10:51 PM
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parshisa Offline
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How did the level look like on the dipstick? How much have you drained? I bet it was over 4qts. Just run premium gasoline and real synthetic oil and fuel dilution will be almost gone.

Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715661 04/03/18 11:21 PM
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OneEyeJack Offline
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Looks like the flashpoint is down, as well.

Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715673 04/03/18 11:31 PM
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Call/send this to Honda and ask if this is acceptable.

My guess?
They blame your driving style whatever it may be.

Last edited by Brybo86; 04/03/18 11:32 PM.

08 Honda Accord EX-L 2.4L M1 EP 0w20 153k
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Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715708 04/04/18 12:54 AM
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This reminds me of the first oil change I had done on my old Daihatsu back in 2007 except that my KV100, after 9000 miles, was even lower at 5.0 cst! My old car had a 1.0 litre normally aspired 3-pot so what you've found isn't unique by any means to Honda Turbos.

The good news is that your primary wear metals are relatively low and nothing to worry about. Remember that wear metal levels are usually at their highest at the first OCI as the engine beds in. I'd expect the numbers to drop back somewhat for subsequent oil changes.

I note that you're from from Canada so this oil has been subjected to driving in some exceptionally cold conditions and this will have contributed massively to the fuel dilution problem. Normally I'd say something here about Global Warming but it only revs up the mouthfrothing brigade so I won't! The other thing I've often wondered with these Honda engines is whether the coolant thermostat is set too low & oil seldom gets up to a temperature conducive to stripping condensed gasoline out of the oil.

It could of course be an issue with thin, low tension rings not adequately sealing the cylinders (the most likely cause on my Daihatsu). This kind of thing is great for fuel economy but bad for blow-by (which drives fuel dilution). Having a turbo will undoubtedly exacerbate blow-by. There's not much you can do about this.

Your Honda factory fill oil will be as good as it gets. Changing to another synthetic won't help you one iota. If the fuel dilution issue persists & bothers you, maybe move to a 5W30. With the fuel dilution, it will over time 'thin' to around about a 0W20.

If you're feeling adventurous, talk to Honda about replacing the radiator cap; one with a higher temperature set-point. It might be what this engine needs to purge the condensed gas from the sump.

Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715750 04/04/18 05:02 AM
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Bjornviken Offline
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And use a acea a5 spec

Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715786 04/04/18 06:53 AM
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henni Offline
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For some reading, check our the crv forum on this topic


Here and Here

Re: 1.5L Honda turbo oil dilution [Re: Rolla07] #4715835 04/04/18 08:10 AM
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Highkm Offline OP
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Iíve dropped in Amsoil 0w20 XL and will run for 8000km at which point Iíll extract some oil and send to lab. I think I understand now why Honda puts lots of molybdenum into ff oil. Metal to metal contact is expected during breakin period and with dilution even more so. Molybdenum slows down the wear but does not prevent proper break-in. That being said I donít think Hondaís ff is good enough to go full term without serious premature engine wear. New engineers at Honda have yet to experience long term effects of oil fuel dilution.

Re: 1.5L Honda turbo oil dilution [Re: parshisa] #4715844 04/04/18 08:17 AM
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Highkm Offline OP
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I have drained 3.7 or 3.8 L roughly. I check the dipsticks twice a week. If it were 4L it would smell of gasoline quite a bit at that would be more than 10%. That would also indicate a serious design flaw as well as bad software, enough to get me out of the vehicle.

Re: 1.5L Honda turbo oil dilution [Re: SonofJoe] #4715853 04/04/18 08:24 AM
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Highkm Offline OP
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These new crvs definitely do not warm up fast in cold Canadian weather and I am sure it greatly contributes to the dilution.

Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715856 04/04/18 08:25 AM
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Very high wear metals. It's no surprise with ultra thin oil in a highly loaded, turbocharged, direct injection engine. I'll bet you a dollar the wear metals decrease markedly with higher viscosity. It seems there have been a handful of engine failures too. Keep on top of it.

Last edited by Cujet; 04/04/18 08:36 AM.

People who count on their fingers should maintain a discreet silence.
Re: 1.5L Honda turbo oil dilution [Re: Highkm] #4715877 04/04/18 08:47 AM
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High octane fuel and Real synthetic.

Good luck finding a real synthetic.

Wait till you hit 15Kkms.

Wear-in reports always look bad, but,
that fuel dilution% is atrocious though.

I don't know if it will go away; reads like a ring/pistion design flaw.

AGAIN.


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