Offboost
Well-Known Member
- Thread starter
- #1
I know this will never happen but it would be interesting to take a car that supposedly uses little to no oil and one that is claimed to be using excess oil and switch drivers for a few thousand miles and see if the oil consumption reduces or increases!
I feel the low tension rings are doing what they are designed to but some driving styles either increase or decrease consumption.
Constant high rpms lower gears not a lot of combustion pressure to expand the rings tightly against the wall will increase oil consumption. Remember these thin low tension rings are doing exactly what they are intended to do. They free up horsepower and increase fuel economy while allowing the engine to rev quicker through less friction from the rings against the cylinder wall.
Lower rpms with higher loads will increase ring pressure against the cylinder wall and decrease oil consumption. While higher rpms with little to no load will not create enough cylinder pressure to push the rings tightly against the cylinder walls to keep oil control at bay.
Those that track there car probably don't use a lot of oil since the engine is mostly under heavy load even at higher rpms since most are trying to get to the next corner as quickly as possible.
I am really surprised that I have not read one post unless I missed it of anyone doing a compression and leak-down on a engine that some state uses excess oil. I bet they will not find anything wrong.
If a engine truly has internal issues there would be other signs like excess smoke on cold start, rough running fouled plugs misfires etc.
I truly believe that there are very few issues with these motors and most perceived issues have a lot to with driving style. Just my opinion
I feel the low tension rings are doing what they are designed to but some driving styles either increase or decrease consumption.
Constant high rpms lower gears not a lot of combustion pressure to expand the rings tightly against the wall will increase oil consumption. Remember these thin low tension rings are doing exactly what they are intended to do. They free up horsepower and increase fuel economy while allowing the engine to rev quicker through less friction from the rings against the cylinder wall.
Lower rpms with higher loads will increase ring pressure against the cylinder wall and decrease oil consumption. While higher rpms with little to no load will not create enough cylinder pressure to push the rings tightly against the cylinder walls to keep oil control at bay.
Those that track there car probably don't use a lot of oil since the engine is mostly under heavy load even at higher rpms since most are trying to get to the next corner as quickly as possible.
I am really surprised that I have not read one post unless I missed it of anyone doing a compression and leak-down on a engine that some state uses excess oil. I bet they will not find anything wrong.
If a engine truly has internal issues there would be other signs like excess smoke on cold start, rough running fouled plugs misfires etc.
I truly believe that there are very few issues with these motors and most perceived issues have a lot to with driving style. Just my opinion
Sponsored