Mobil Super 3000 X1 5w-40 uses high performance synthetic base oils together with an advanced additive system to provide an oil, that meets the latest industry specifications the majority of the dominant car manufactures service fill requirements. Mobil Super 3000 X1 5w40 is specifically recommended for use in all vehicles including high performance, turbo-charged gasoline and diesel passenger cars fitted with advanced computer controlled multi-valve fuel injection engines.
This LL-01 oils are for high sulfur content fuels - as in USA fuels. LL01 needs to be changed more regularly than LL04 due to the high sulfur.
5W-40 oils are likely to be used in higher-performance engines that have higher operating temperatures and loads than the norm – those driven in urban environments, that commonly sit in traffic or driven at particularly high speeds, for example.
If your vehicle is not designed to be driven in a high-performance manner, or you drive at a more considered, environmentally friendly pace, 5W-30 oils are a good choice. These are commonly better for certain engine components such as oil pumps, can clean the engine better, and have longer lifespans due to having a lower temperature range.