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Tolerance specs in the engine change as things get broken in and worn down..
Synthetic oil has more "penetrating" power so it will seep into smaller spaces where conventional oil wont. This is why you should not use synthetic oil in older cars.. A lighter oil like a 5w30 will be thinner than a 15w50. Thinner oils will cook off quicker.
Its pretty much a trial and error, which oil you should use. But its all about the same.
My 96 Corolla only started leaking from the main seal after a trans flush. It either cleaned some crud that was preventing the leak or the put too much pressure on the flush and it caused it. Not a big deal it only leaks when parked uphill.
You would not have a engine main seal leak as a result of a tranny flush. The two are not connected.
Check the color of the "oil." If it's red, that's transmission fluid.
On a 1/10 if car leaks oil 1 quart every 2 weeks how bad is that of a leak like a 6?
I'm not sure what you're asking, but here's how I advise people...
It's all a question of what you can live with, and what you want to do.
If you don't mind having an oil spot on your driveway and/or in your garage, a small oil leak is no big deal. If you're losing a quart of oil between oil changes (every 3000-4000 miles) it's no big deal.
You can buy a heckuva lot of oil, at $5 per quart, for the cost of replacing (for instance) a main seal.
On the other hand, if you're going through a quart of oil every 25-50 miles, you've got a major leak that is almost certainly going to leave you stranded somewhere, with a ruined engine.
My car is like 8 years old and leaks oil sometimes i got an oil change about a month ago he didn't say anything and i got a car inspection about 2 weeks ago and didn't say anything i also remember about a year ago my car leaking oil from time to time how do some cars leak oil and still run greatly?
Changing your oil on a regular basis is key to keeping an engine running at optimum efficiency. In addition keeping oil levels within tolerance is critical also.
inferior gasked material used in older cars made them prone to leaking.
Some would either flatten or thin out. Others would become brittle and crack
Oil to your car is like Blood is to us. It is key to it's primary function, without it a engine cannot operate.
My 2000 Lexus GS blew a head gasket without warning. The head gasket was replaced, but the work produced a bad oil leak. The car burns oil and the back of my car is oily after I drive it a bit, as if oil is coming through the exhaust. I think the cost to fix is worth more than the car is worth, so I'm shopping around.
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