Honda CR-V Owners Club Forums banner
  • Hey everyone! Enter your ride HERE to be a part of December's Ride of the Month Challenge!
1 - 20 of 167 Posts

·
Registered
Joined
·
424 Posts
Discussion Starter · #1 ·
A used oil analysis is not inexpensive ~$25-35 per analysis. How I choose to spend my money is no one elses business.
I can appreciate that some think this is a waste of money, if you are of that opinion please move on to a different forum topic.

I have had two oil analyses done on my 2018 CR-V purchased Dec. 2017, kept in SE Wisconsin, primarily short distance trips.

In April at time of first oil change at 4441 miles, Maintenance Minder at 50% oil life, oil level was at top of orange plastic 3.5 minutes after shutdown, ~1/16" higher when cold

Second oil change Sept 22 at 11593 miles, Maintenance Minder at 15% oil life, oil level ~1/8" below top of orange plastic 3.5.minutes after shutdown, at top of orange when cold

Both analyses are shown as Sample #1 and #2 in provided images. Fuel dilution was greater than 5% in both samples (they don't provide information above 5%). They consider >5% to be at a "critical" level, and dilution caused viscosity reduction at an "abnormal" level. At this point (11593 miles) they detect no apparent wear.

The "note" reference in the Comments section is my request for Gas Chromatography test
https://www.google.com/search?sourc...atography&oq=fuel+dilution+Gas+Chrometography

I have also provided links to other oil analysis posts (including my original) that may provide a helpful resource.

https://www.crvownersclub.com/forums/19-maintenance-service/72994-oil-change-3.html#post465529
https://www.crvownersclub.com/forum...blackstone-labs-oil-analysis.html#post1169585
https://www.crvownersclub.com/forum...017-cr-v-oil-analysis-report.html#post1459250
https://www.crvownersclub.com/forum...sue-watch-your-oil-level-160.html#post1467882
https://www.crvownersclub.com/forum...ssue-watch-your-oil-level-27.html#post1371185
https://www.crvownersclub.com/forum...sue-watch-your-oil-level-178.html#post1474133
https://www.crvownersclub.com/forum...ssue-watch-your-oil-level-75.html#post1406929
https://www.crvownersclub.com/forum...ssue-watch-your-oil-level-92.html#post1415378
https://www.crvownersclub.com/forum...ssue-watch-your-oil-level-96.html#post1418394

Text Font Line Parallel
Text Line Font Parallel
Line Text Parallel Design Rectangle
Text Line Blue Parallel Font
 

·
Registered
2018 Touring
Joined
·
214 Posts
Strange that they don't measure dilution above 5%. There's no telling how much worse the problem really is. It could have reached 5% after a couple of thousand miles in either sample. Which means you ran heavily diluted oil for thousands of miles after your first change.
 

·
Registered
Joined
·
350 Posts
2nd oil change...not concerned about "abrasives" showing up just yet.

Fuel is an issue for sure.

With high fuel dilution confirmed, I would not run any oil for more than 3000-4000 miles before re-testing and confirmed it still exists or not.

Running high miles like this on diluted oil is asking for abrupt premature failure.
 

·
Registered
Joined
·
531 Posts
"At this point (11593 miles) they detect no apparent wear. "

This is good to hear. Thanks for posting your oil analysis. I'm also located in SE Wisconsin. It looks like you made it through one winter. Hopefully Honda addresses this issue soon so you don't have to constantly worry about gas in your oil.
 

·
Registered
Joined
·
1,404 Posts
Strange that they don't measure dilution above 5%. There's no telling how much worse the problem really is. It could have reached 5% after a couple of thousand miles in either sample. Which means you ran heavily diluted oil for thousands of miles after your first change.
I know you think you are right, but you aren't. There has still been no proof that 5% to 10% oil dilution causes noticeable wear.

These cars will run fro a quarter million miles with dilution around 5%.
 

·
Registered
Joined
·
424 Posts
Discussion Starter · #6 ·
These cars will run for a quarter million miles with dilution around 5%.
I'd be very interested in any documentation supporting this in a gasoline (non-diesel) engine.

Until recently >5% dilution was quite rare and I did find this -

"The results are typically given in percentages, with a recommended cautionary limit of 1.5 percent and a critical limit of less than 5 percent. When fuel levels are much higher than 5 percent, there is a risk of engine fire."

https://www.machinerylubrication.com/Read/31148/fuel-dilution-tests
 

·
Registered
2018 Touring
Joined
·
214 Posts
I know you think you are right, but you aren't. There has still been no proof that 5% to 10% oil dilution causes noticeable wear.

These cars will run fro a quarter million miles with dilution around 5%.
You're missing the point. There's no telling how much higher his dilution was over 5%. It could have been 10 or 15.
 

·
Registered
Joined
·
161 Posts
Since some feel my post is too difficult to merge with this one I’ll repost it here.

I’m coming from a different auto maker, but in the past I’ve usually tested my oil every other oil change with Blackstone (https://www.blackstone-labs.com/free-test-kits.php). As a new 2018 CR-V owner this issue has caught my eye and I’m wondering if anyone has actually had their oil tested. I am also saddened by the fact that this forum has decided to close threads regarding issues such as this.
 

·
Registered
Joined
·
2,024 Posts
Whoa Whoa Whoa! These labs would not flag 2%++ fuel in the oil as an issue if it was not an issue.

It is an issue...and a significant one.
I didn't say there wasn't an issue, just that whatever it is, engine wear does not appear to be an effect of it, and that the oil appears to be doing the primary job of lubrication just fine.
 

·
Registered
Joined
·
350 Posts
The Mods are only trying to keep the information in ONE place, not spread out among 500 posts in 25 Topics.

Sorry if that makes you sad....
I agree with many other members.

While I understand your intent, all the closings and shutting down of threads is unnecessary.

This forum in general is WAY over controlled. Relax a little!
 

·
Registered
Joined
·
424 Posts
Discussion Starter · #14 ·
I’m wondering if anyone has actually had their oil tested.
I hope this thread and the other links in the first post have helped you to stop wondering.:)

In regards to the >5% dilution, one reply on this forum stated that over 5% was so rare that testing over that amount was not necessary-
https://www.crvownersclub.com/forum...h-your-oil-level-post1418562.html#post1418562

Although having a specific, accurate number would be nice, it seems once you exceed 5% (critical levels) the specific amount matters less and less (I guess?)

I did follow up with Oil Analyzers Inc. in April and made the suggestion that they consider testing for specific amounts over 5% in the future.
 

·
Registered
Joined
·
15 Posts
Here is my UOA from a couple of weeks ago. All looking good! Factory fill, so some high break-in metals. Nothing abnormal. Seen nothing abnormal when checking oil levels. Loving this car. Text Font
 

·
Registered
Joined
·
72 Posts
these numbers seem roughly in line with mine. i don't have my report handy, but i'll check in here soon because i'll be changing oil tonight and the next report will show both sets of numbers from our first two changes.

but by recollection (don't have the report handy), our viscosity was in the 5.8 range and dilution at 1.5% (i care more about the first number since even Blackstone acknowledges that the latter is a rough estimate) after 3400miles. we'll see what the second oil change reveals...

Here is my UOA from a couple of weeks ago. All looking good! Factory fill, so some high break-in metals. Nothing abnormal. Seen nothing abnormal when checking oil levels. Loving this car. View attachment 125745
 

·
Registered
Joined
·
37 Posts
Does anyone have details in how I'd work with the dealer to obtain one of these oil samples, or is that not even worth trying? I want them to change the oil to see that the oil is half an inch above the top of the dipstick and have it documented, but I also want to get the oil analysis done to know how much wear the engine is taking. I am assuming that the only way to collect the oil for oil analysis would be to change it myself.
 

·
Registered
Joined
·
164 Posts
Does anyone have details in how I'd work with the dealer to obtain one of these oil samples, or is that not even worth trying? I want them to change the oil to see that the oil is half an inch above the top of the dipstick and have it documented, but I also want to get the oil analysis done to know how much wear the engine is taking. I am assuming that the only way to collect the oil for oil analysis would be to change it myself.
You can extract a sample yourself before you take it in for an oil change. Some here have obtained a small battery operated suction pump to which you attach a length of small diameter clear vinyl tubing. Push the tubing down the dipstick tube and pump a small amount into the sample bottle the testing lab provides.
 

·
Registered
Joined
·
164 Posts
I know you think you are right, but you aren't. There has still been no proof that 5% to 10% oil dilution causes noticeable wear.

These cars will run fro a quarter million miles with dilution around 5%.
And you might think you are right but you're not. What credentials do you have which would give your statements credibility? Fuel dilution causes the oil viscosity to thin below the manufacturers recommended limit. Under load hot oil coming off the connecting rod bearings is around 300° F. Protecting the connecting rod bearings is job number one, the highest priority for motor oil.
 
1 - 20 of 167 Posts
Top