For my pick-up,which is probably used.abused more than the average car or truck by towing,short and long commutes,extensive idling and a ton of other sins, I use Mobil 1 oil and K&N oil filters.The K&Ns cost more,but since I'm already spending $25 for oil,a $10 filter doesn't hurt too badly.My LOF interval for the truck is 5000 miles or 2 months.The K&Ns filter down to 10 microns,have the beefiest case,a high quality by-pass valve and a silicone based gasket. The oil still looks clean when it gets changed.
For my wife's VW Passat VR-6,which only sees about 5000 miles ayear,either Wix or OEM cartridgeswith Vavolineor Castrol dino based oil.LOF interval is every 6 months.
For gas engined trucks at work,all WIX with Valvoline All-Climate,every 3000 miles.
For all diesels,I use WIX and Shell Rotella T- every 6000 miles or 6 months.
The lower end Frams are garbage-the higher priced ones aren't much better.And,to add insult to injury,there are a lot of counterfeit chinese made trash being sold in almost perfect copies of Fram products.
George
