Yeah I add about a quart or so every other day...not so much the distance but more more so basically if I drive hard. The car spits out the oil (black smoke) out the exhaust - at least I'm assuming it's oil.
Ok I know I have a mkiii BUT its not a BHG (Blown head gasket) - smoke isn't white and my friends say that I'd know if the head gasket was blown.
What I do know on my 1989 supra NA manual:
Compression check shows 5th cylinder is slightly bad (15-20 lbs?)
PCV valve probably needs to be replaced - lines running to intake manifold might be clogged as well - adding an oil catch to fix that.
Valve gaskets may have been improperly installed or may need to be replaced.
Oil pressure gauge in car reads really low when idling/low rpm
Car does run better (less smoke more power) with chevron gas vs shell or 76
Plugs need changing ( I get paid on thursday!!!)
Could it be the oil sending unit? I read this from another post:
I'm thinking that I might have a couple different issues here and some symptoms might not necessarily be for certain problems...help.
I'm new to toyota nation so haven't done a good search for this problem on the site but I did see a lot of good advice on other postings. Hoping someone can help me diagnose. I don't mind chaning the parts as long as the problem gets fixed!
Ok I know I have a mkiii BUT its not a BHG (Blown head gasket) - smoke isn't white and my friends say that I'd know if the head gasket was blown.
What I do know on my 1989 supra NA manual:
Compression check shows 5th cylinder is slightly bad (15-20 lbs?)
PCV valve probably needs to be replaced - lines running to intake manifold might be clogged as well - adding an oil catch to fix that.
Valve gaskets may have been improperly installed or may need to be replaced.
Oil pressure gauge in car reads really low when idling/low rpm
Car does run better (less smoke more power) with chevron gas vs shell or 76
Plugs need changing ( I get paid on thursday!!!)
Could it be the oil sending unit? I read this from another post:
BTW yes there is oil around the oil sending unit and around the rear of the engine near the valve gaskets. Derr, oil is probably leaking from those places but I can't say for sure because the engine was pretty dirty all over when I got it. If I were smart I'd clean the engine and then look for leaks aha!This is the Oil Pressure sending unit. Typically it can leak if not properly tightened, but there is no gasket. The cam position sensor is higher up and further right, but often the rubber ring sealing it can leak and drip down to the Oil Pressure. Also, valve cover gaskets could cause a leak in the similiar area. I suggest you make sure that the sensor is properly tightened, then check the other two possibiliites.
I'm thinking that I might have a couple different issues here and some symptoms might not necessarily be for certain problems...help.
I'm new to toyota nation so haven't done a good search for this problem on the site but I did see a lot of good advice on other postings. Hoping someone can help me diagnose. I don't mind chaning the parts as long as the problem gets fixed!