I have been losing oil at a rate of about 1/2 a quart every two tanks of gas (~550-600mi.). I checked my engine bay and fixed all the exterior leaks: cam plug, valve cover gasket. I've done a leak down and no major pressure drops. My compression is 150, 150, 150, 140; a little low but even. I can't see any smoke coming out of my tail pipe either.
I'm stumped!!!
Any other suggestions?
Any advice will be greatly appriciated.
Thanks,
Joe

 

Welcome to the wonderful world of owning a B-series engine.

 

LOL. is this common?

 

umm...have you checked your oil pan? do you see any oil on the ground when you leave a spot after parking a while? you could be burning oil just because the car is old. how many miles on it?

 

I've got 112,000 on it. My oil pan is solid too.

 

1/2 qt every 600 miles isn't bad...

im burning 1-2qts every 100-150 miles...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by supadupamikey &raquo;</TD></TR><TR><TD CLASS="quote">1/2 qt every 600 miles isn't bad...

im burning 1-2qts every 100-150 miles... </TD></TR></TABLE>

 

I have 140K on my GSR and burn NOOO oil between oil changes. I used synthetic oil during the whole life of the car and 3k intervals.

maybe you abused your engine and didnt maintain it properly.

 

I have been treating very well. However, who knows what the last to owners did to it.

 

Do a leakdown test to confirm, but I'll bet you have fried piston rings.

 

most likely its the pistons rings
have a leak down test done
dont feel bad i have 13,000 miles on mine and it burns about the same amount as you. just always keep oil in the trunk and check it every time u get gas

 

I'm in the same boat as you, I'm guessing its valve stem seals. My compression and leakdown tests come back good.

 

i just did a rebuild on my engine because of this it was my valve seals at first i thought it was my piston rings but it ended up being my valve seals