Cracked injector cup(s) are a distinct possibility here.
Blown head gasket
No you can not use gas engine oil in diesel engine oil because processing of diesel engine is different from gas engine oil. If you use this then it damage your vehicles.
NO, do not use diesel oil and a gasoline engine.
Oil is just as important to a diesel engine as it is to a petrol engine
"Diesel oil" or "Heavy oil" is another term for diesel fuel. Not to be confused with "engine oil for a diesel engine" which means lubricating oil specially formulated for use in diesel rather than petrol engines.
5 liters of diesel engine oil.
There is a water leak somewhere in the block.
any diesel oil will be fine
There is not a whole lot of difference if you are using the oil in an older diesel engine. The diesel oil of today has special additives to combat the soot buildup in the oil from the EGR. The diesel oil will get dirty a lot sooner on the late model engines. A 15w40 for a gas engine can be used in a diesel.
Change your oil cooler.
Yes, never put oil formulated for a diesel in a gasoline engine.
apparently cooking oil with diesel