Hi,
I once read that the major reason why gasoline engines have a shorter lifespan than diesel engines is the cylinder wall wetting problem: Since diesel fuel acts as a lubricant itself, it will hardly have a negative effect on the cylinder wall wear.
Contrary, gasoline fuel dilutes the oil film on the cylinder walls, especially during startup when the engine is cold and more fuel is injected into the engine. This wetting of the wall with gasoline will cause increased wear in the cylinder wall. As a result, the engine will loose its compression over time and will need a complete overhaul.
This should explain why diesel engines have a longer lifespan than gasoline engines.
BUT. Is this still true? Is this "old news" from the times with carbureted engines where the choke nozzle injected large amounts of fuel into the cylinders and nowadays the electronic fuel injections with much better spray patterns dont show this problem at all?
What is your opinion on this topic? Do modern gasoline engines show significantly less wear than old carbureted engines?
Lucas
I once read that the major reason why gasoline engines have a shorter lifespan than diesel engines is the cylinder wall wetting problem: Since diesel fuel acts as a lubricant itself, it will hardly have a negative effect on the cylinder wall wear.
Contrary, gasoline fuel dilutes the oil film on the cylinder walls, especially during startup when the engine is cold and more fuel is injected into the engine. This wetting of the wall with gasoline will cause increased wear in the cylinder wall. As a result, the engine will loose its compression over time and will need a complete overhaul.
This should explain why diesel engines have a longer lifespan than gasoline engines.
BUT. Is this still true? Is this "old news" from the times with carbureted engines where the choke nozzle injected large amounts of fuel into the cylinders and nowadays the electronic fuel injections with much better spray patterns dont show this problem at all?
What is your opinion on this topic? Do modern gasoline engines show significantly less wear than old carbureted engines?
Lucas