Yes.
5w20
No, there are too many differences
A 1998 Jeep Wrangler does not have EGR.
Trim package
18 gallons should be all you have
The 2010 Jeep Wrangler has 12 valves.
The 2010 Jeep Wrangler has a V6 engine.
The Jeep Wrangler 2011 models start at a price of $22,045.00 for a Jeep Wrangler Sport. A Jeep Wrangler Sport S starts at $24,245, Jeep Wrangler Sahara starts at $27,745.00, Jeep Wrangler Sahara 70th Anniversary starts at $29,055.00, a Jeep Wrangler Mojave starts around $29,775.00, and the most expensive Jeep is the Jeep Wrangler Rubicon that starts at around $29,820.00.
no
Yes
What size axle does a 99 wrangler sport have