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Honda accord oil consumption
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jrc903
New User
May 1, 2011, 9:11 AM
Post #1 of 1
(3453 views)
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Honda accord oil consumption
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1998
Honda
Accord EX
2.3L Vtech
114800
Engine Compression:215 psi across the board (tested both hot and cold)
New plugs
New plug wires
PCV replaced and system checked for proper operation.
Oil and oil filer changed.
Performance:
No Check Engine Light
Overall Good performance—but sometimes showns slight hesitation at about 3000 RPM
Gas Mileage: 25 MPG
No visible smoke
No oil on ground.. very clean bottom of engine.. (may have been washed by dealer)
Oil Consumption Test:
1.Emptied crankcase—left newly installed filter in place
2.Added exactly four quarts of 10W30 advanced auto brand oil—added 3 ounces of sea form.
Dip stick showed oil level exactly at the top mark on level floor- oil fill cap was level as well.
3.Cleaned exhaust pipe.
Drove 65 miles—maintaining 3000 RPMs with gear box
Car ran quite well in semi-heavy wind.. quite smooth at over 3000 rpms
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RESULTS:
Oil Level showed it down exactly one quart
Removed plugs.. 
(left to right... number 4, 3, 2, 1)
#1 showed slightly hot
#2 showed dark brown combustion—but with black scoot on outer electrode
#3 showed normal
#4 showed normal electrode color –but black scoot around outside
Exhaust pipe showed black scoot.
CONCLUSION:
Clearly burning LOTS of oil..
(However) No smoking, No leaking, no plug fouling, no engine missing, no major problems, no CELs
QUESTION:
1. Is it likely, that an engine that runs this well.. (very strong) does not show visible blue smoke . has more than enough,and even compression.. need rings? or could it be something else.. like value guide seals or something to with oil passageways or pcv system (despite being checked)
Update may 3 2011 9:25am est
I just performed another compression test.. however this time--- I decided to see exactly how much I could saturate the rings with oil (just in case they were not already saturated) and compare the results. One each of the four cyclinders, (for roughly the same amount of oil) I observed a 14 percent increase in compression.
Now--- while the picture of the spark plugs I had planned to include last time did not appear--- the plug from number 2 shows the most obvious affect from oil... the other three show white/brownish (close to stoichiometric ) After reading other posts the other day, regarding how leaking value guides/seals can cause oil to appear on the side of the electrotype corresponding to which (leaking) value is facing that side of the plug.. and sure enough-- plug 2 shows it coming from one side more than the other three sides.. don't know which of the four values is facing that plug.. but from what I read--it is most likely, one of the two exhaust values.
The thing that bothers the hell out of me, is how one cylinder could be eating that much oil without even a hint of trouble.. But rest assured-- after i got done injecting oil into those cylinders for this wet compression test-- it smoked on start up ALL RIGHT.. so again--the notion that the cat. converter is cleaning up all that oil... before it hits the end of the pipe--- is put to rest. So--- number two cylinder has something wrong with it regarding oil..(by plug color ect) but this may be a dual or triple type of a problem stemming from the same root cause....(bad car care on the part of the previous owner). because that oil is going somewhere and the car does not act like it is all going through the combustion cycle. BUT---I have not heard of a situation where the bottom of the engine suddenly opens up while the car is moving at 60 mph, drops oil on the ground.. then seals itself up clean, before it can run out of the garage floor.. but this problem is kinda that weird.. so.. i am open to any suggestion?At any rate, the notion that even while only number 2 cylinder shows oil impact--- that all cylinders could be blowing exactly the same compression both hot/cold dry/wet. kinda indicates that the problem with number 2 is not oil rings or rings period.. BUT then again.. I am only a layman on Honda engines.. So if anyone out there--- has any better ideas I would love to hear from them..
here are all the plugs following recent test
https://picasaweb.google.com/HondaMaven/20110430#5602501311597348450
left to right: 4,3,2,1
Here is the plug from cylinder# 2
https://picasaweb.google.com/HondaMaven/20110503#
(This post was edited by jrc903 on May 3, 2011, 7:58 AM)
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