You can use synthetic, conventional, or a blend in the engine. The weight called for is 10W30.
10w30
80w90
A 1999 Jeep Wrangler needs 6 quarts of oil for an oil change.
10w30
10w30
10w30
10w30
10w30
A 2000 Jeep Wrangler uses 10W30. It can be synthetic, conventional, or a blend.
Automatic mopar ATF+4 Manual 75w90 gear oil
4.5 quarts
10w30