I disagree. To my knowledge Mobil does not even make a real 'full' synthetic oil. Full synthetic oil is produced with PAO's (poly alpha olefins) there is no mineral oil base as with most synthetic oils such as Mobil 1. Amsoil sells both types. Their XL line would be comparable to Mobil 1's extended drain interval product but their higher level products are full synthetics unlike most of their competitors.LOL!!
Mobil1 > Amsoil
I would suggest using one of the following filters:So then what filter should i use...???