1999 Civic Losing Motor Oil
My 1999 Civic LX with 100k miles is losing oil.
It used to go from the high to low line on the dipstick in about 2000 miles. The mechanic had been urging for a number of years to fix a leak in the oil pan gasket, which we finally did. That was 900 miles / 1 month ago. In that period, the oil went from the high to low marks on the dipstick. It appears to be losing oil faster than it used to. My 94 Civic LX rarely lost any oil, so I am concerned. Shouldn't replacing the oil pan gasket have fixed the loss of oil? Thank you. |
Re: 1999 Civic Losing Motor Oil
Originally Posted by alpinegroove
(Post 49215674)
My 1999 Civic LX with 100k miles is losing oil.
It used to go from the high to low line on the dipstick in about 2000 miles. The mechanic had been urging for a number of years to fix a leak in the oil pan gasket, which we finally did. That was 900 miles / 1 month ago. In that period, the oil went from the high to low marks on the dipstick. It appears to be losing oil faster than it used to. My 94 Civic LX rarely lost any oil, so I am concerned. Shouldn't replacing the oil pan gasket have fixed the loss of oil? Thank you. Was the oil pan gasket really the issue? And was it replaced properly? Can you see oil on the ground? If not then you probably have an internal issue. |
Re: 1999 Civic Losing Motor Oil
I believe the oil pan gasket has been fixed properly. I don't think there is currently a leak.
That's the fix the mechanic suggested, so I went with it. What else could be causing it? |
Re: 1999 Civic Losing Motor Oil
Clean the external surfaces of engine of oil. Watch for locations of fresh oil, starting with top of the engine.
Common oil leak locations for D16Y7:
Less common:
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Re: 1999 Civic Losing Motor Oil
Originally Posted by alpinegroove
(Post 49215694)
I don't think there is currently a leak.
Originally Posted by alpinegroove
(Post 49215694)
That's the fix the mechanic suggested, so I went with it.
Originally Posted by alpinegroove
(Post 49215694)
What else could be causing it?
Verify that you are seeing oil on the ground before moving on. |
Re: 1999 Civic Losing Motor Oil
Over the last few weeks, I have realized that I cannot trust this mechanic. This is just one of the issues. I was expecting the oil loss to be addressed by fixing the oil pan gasket...
I'll try to determine if there is another leak. |
Re: 1999 Civic Losing Motor Oil
if theres no leaks its obviously burning the oil, its a honda after all. why waste time trying to chase a leak that would be clearly obvious at the rate your losing oil when its clearly not leaking?
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Re: 1999 Civic Losing Motor Oil
Originally Posted by janz3n
(Post 49215995)
if theres no leaks its obviously burning the oil, its a honda after all. why waste time trying to chase a leak that would be clearly obvious at the rate your losing oil when its clearly not leaking?
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Re: 1999 Civic Losing Motor Oil
Originally Posted by janz3n
(Post 49215995)
if theres no leaks its obviously burning the oil, its a honda after all. why waste time trying to chase a leak that would be clearly obvious at the rate your losing oil when its clearly not leaking?
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The only way to solve this issue is by process of elimination. First, determine where the leak is originating. Second, if you don't know how it fix the issue then ask for help, or fix the issue.
Do some diagnostics then come back. |
Re: 1999 Civic Losing Motor Oil
change your pcv valve
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Re: 1999 Civic Losing Motor Oil
if this is not the case then you new piston rings.
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Re: 1999 Civic Losing Motor Oil
Originally Posted by alpinegroove
(Post 49216004)
What would you do then?
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Re: 1999 Civic Losing Motor Oil
Thanks, all. I'll clean the engine and observe.
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Re: 1999 Civic Losing Motor Oil
Probably cam/crank seal or rear main.....
Until u do some diagnosis & elimination, we r talkin in circles here. |
Re: 1999 Civic Losing Motor Oil
Originally Posted by RonJ@HT
(Post 49216002)
He'd be blowing blue smoke out the exhaust if all that oil was getting past the piston rings. He clearly had an oil leak and it's unclear that the oil gasket replacement fixed the leak.
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Re: 1999 Civic Losing Motor Oil
Originally Posted by janz3n
(Post 49217311)
you dont always see smoke when burning oil, it can be faint enough that you dont notice. if this guy is losing as much oil as he thinks he is he would be seeing a stain under his car every time he parked it.
Loss of the large amount of oil reported by the OP would almost surely produce some visible blue exhaust smoke if one looked for it...and the OP had and paid to have an external oil leak fixed, apparently unsuccessfully. Regardless, the OP currently should be carefully looking for both external oil leaks and blue exhaust smoke. |
Re: 1999 Civic Losing Motor Oil
k, well there would still be visible sign of a leak on the ground after parking if its leaking during driving.
like i said before oil burning does not always produce visible smoke, and when you arent looking for it its thats much harder to notice. we're talking about .5 to 1 Liter of oil this guy is losing, this would make a mark under the car no mater what. also, the OP hasnt actually looked at his car to see if theres oil anywhere on the engine to confirm if the oil pan is still leaking or that there is a leak at all. |
Re: 1999 Civic Losing Motor Oil
Originally Posted by janz3n
(Post 49217355)
k, well there would still be visible sign of a leak on the ground after parking if its leaking during driving...we're talking about .5 to 1 Liter of oil this guy is losing, this would make a mark under the car no mater what.
also, the OP hasnt actually looked at his car to see if theres oil anywhere on the engine to confirm if the oil pan is still leaking or that there is a leak at all. |
Re: 1999 Civic Losing Motor Oil
I can guarantee you if you're losing that much oil in that short of time from a leak you would see it on the ground.
I'm not saying its all from burning in the cylinders but either a combination of that and a leak or just from burning. Of course the op should check for a leak, I'm not saying he shouldn't. |
Re: 1999 Civic Losing Motor Oil
Originally Posted by janz3n
(Post 49217439)
I'm not saying its all from burning in the cylinders but either a combination of that and a leak or just from burning. Of course the op should check for a leak, I'm not saying he shouldn't.
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Re: 1999 Civic Losing Motor Oil
The oil pan gasket is not leaking. I can confirm that. I am still working on inspecting the rest.
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I second the notion of some engine degreaser, some rags, and shining up the engine, top to bottom, then taking it around the block to pinpoint the leak.
If the OP is really curious about burning the oil, he could perform one of most useful engine diagnostic tests around... wait for it... A LEAKDOWN TEST |
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