Barry - Glad you're doing the Solo tomorrow - good luck. I'm using an Amsoil dual bypass oil filter, which I have used on several cars over the last 8 years. One of the filters is a full flow filter like standard filters, the other is a fine filter which takes out very small (1 micron) particles from the oil. About 10% of the oil flow goes through it, so it takes a number of minutes for all the oil to run through that filter. The lower flow rate through it would not allow it to be the only filter. I've had really good luck with these. I'v mounted the filters in the left air intake area, where brake cooling air goes under the filters, but the filters are exposed sufficiently to be cooled. Oil change intervals with this setup are 1 year or 25,000 miles. At 6 months, one replaces the full flow filter and tops off the oil. I had to make a bracket to mount this setup, but it's not difficult to do if you like that sort of thing. Let me know if you guys want more info on this setup. I'm using Amsoil oil, as well. Jeff B in CO
What IS important however, is consistency. It is not a good idea to use brand X motor, then brand Y, then back Z etc. It's best to pick one brand and stick to it. I would recommend Mobil 1 because it's price and availability. Look for a link from www.mkiv.com under tech articles in regard to the mobile one million mile test. A brand new BMW 300 series was run for 4 years straight through 1,000,000 simulated miles. When the engine was torn town at the end of the test *EVERYTHING* was within good tolerances, many parts we even within NEW tolerances. If you're concerned about longevity I would be more concerned about how your car is tuned.
