Originally posted by Auto-X Fil:
Anything with a greater range should be fine. Mobil 1 0W-40 is the choice of some CEGers. In general, though, unless you have a special application, 5W-30 is what you want. I use 0W-40 for the winter, since it gets down to -25 sometimes. But, it's hard to find, so I often just stick with the 5W-30. The difference is pretty slim.



Not that slim. Mobil 1 5-30 is almost a 20 weight oil, whereas mobil 1 0-40 is really close to a thick 30 weight. Notice more importantly, how thin mobil 1 10-30 is!!