Originally Posted By: jmsjags
Originally Posted By: Oregoonian
I just switched to a Fram 'Ultra'....costing $8.97 at WalMart. Its a premium filter with synthetic media....and should go easily to 12 to 15K.
I'll be using it for two OCI's of 7500 miles each. IMO, it might be the 'best buy' of all the premium filters available.
i've thought about doing that. the only downside is that you have about half a quart of old oil left in the filter when you do your oil changes. unless i was using an extended drain synthetic, i would not want to have the same oil in there for 15k miles. and changing out Mobil 1 Extended Performance every 7,500 miles is very expensive. i feel you are better off just using a regular synthetic and changing it, along with the filter, every 7,500 miles.
I'm using Mobil 1 0w20....for two OCI's of approximately 7500K on one Fram Ultra. Mobil 1 is a 10K oil, so it should work out fine.
IMO....a 1/2 quart of used oil in the filter, will not make a difference.