Well, it's going somewhere. Put a piece of cardboard under the car and let it idle for 10 min. Then shut it off and let it sit overnight. You got spots on the cardboard, you're leaking it. Old engines have exhaust gas escaping by the pistons and into the crankcase (called blow-by). Once it gets to the point the PCV valve can't handle it, it pushes out of the various seals on the engine and makes leaks all over. Only way to fix that is rebuild the engine. On the other hand if you don't have pressure coming out of the crankcase, you likely just got a bad seal. The crankcase side of the PCV valve is a good place to check for this. How much is too much? um... if you can feel 'air' out more than it's going in, it's too much. If not, you're burning it. If people honk when they pass you from the cloud of smoke you are leaving, you are buring oil. Possible causes are a badly worn engine with oil rings worn all the way down, or bad valve seals leaking into the exhaust or intake. Common failure point for high mileage cars is the rear main seal. It sounds like a big deal because it is. It's located where the spinning shaft leaves then engine and goes into the transmission and is the largest turning seal in the engine. Replacement requires removing the transmission. Your engine will leak between the engine and the transmission for this one. Enough.
Lots of cars made within the last 10 years use 5w20 weight oil. Always use what the manufacture recommends.
You could use vegetable oil to run your car IF it is a diesel. It is not necessarily greener than diesel fuel due to the energy used to produce and transport the vegetable oil.
what is a good engine oil to use in my car
You could well use oil in your car as a fuel, (e.g. vegetable oil) - this is basically what biofuels are. The only problem with them is that you need LOTS of plants to generate the fuel, to do this you need lots of land, and that in itself is not entirely eco-friendly. Plus its very expensive.Shame, really.Hope this helps!
lots of olive oil
you would use 5W-30W have the same car
It would depend on the year of the car and engine type.
Hydraulic oil does not lubricate properly it has a different chemical makeup and viscosity. I would never do that.
ive been told that after putting synthetic oil in my car i would have to keep synthetics in it
No it is not.
oil soap and lots more
to keep the car going