quote:Go with the Chevron Supreme, Pennzoil, or Motorcraft before the Supertech. If you go with Dino-I would go with the 5W vs 10 W . Supertech makes a god filter though. Do a search under "Used Oil Analysis" to get some reports for the 4.0 L engine.
Originally posted by Hubjeep: I was thinking about using the Supertech 5W-30 blend in my 4.0L Wrangler (plow Jeep), or the Chevron Supreme as mentioned above. I am about ready to change it for the season (only used in winter). I figure the 5W will be better for cold weather startups. And a Supertech ST16 filter -John