lobsenza
Registered Member
Fuel economy ratings are another factor in the factory oil fill. If a manufacturer can get a slight fuel economy increase with the use of a particular oil, they will do it, if they can. That is what motivated many manufacturers to 0w-20 oil.
I do not care for 0w-20 or 5w-20 oil, especially when it is hot out. I think the oil is too thin when it is hot. I actually have a vehicle that recommended 5w-20 oil. When the engine was hot and at idle I could hear a slight tapping noise from the engine. When I switched to 0w-30 Mobil 1, the problem vanished. I use 0w-30 Mobil 1 in my Genesis V8. It is listed as an acceptable oil in the owner's manual.
I do not care for 0w-20 or 5w-20 oil, especially when it is hot out. I think the oil is too thin when it is hot. I actually have a vehicle that recommended 5w-20 oil. When the engine was hot and at idle I could hear a slight tapping noise from the engine. When I switched to 0w-30 Mobil 1, the problem vanished. I use 0w-30 Mobil 1 in my Genesis V8. It is listed as an acceptable oil in the owner's manual.