Just wondering what those of you using Mobil 1 use: 10-30 or 15-50...and I'm not really sure why I should choose one over the other. Thanks, John -- John A. Kilpatrick john@hypergeek.net Email| http://www.hypergeek.net/ john-page@hypergeek.net Text pages| ICQ: 19147504 "Where quality is like a dead stinking rat - you just can't miss it."