The 1994 Jeep Wrangler came equipped in 2.5L 4-cylinder and 3.0L 6-cylinder options. The 2.5L can use API rated 0W30, 5W30, and 10W30 all-season.
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The 2008 Jeep Wrangler has overhead valves (OHV).
The 2011 Jeep Wrangler has overhead valves (OHV).
The 2002 Jeep Wrangler has overhead valves (OHV).
The 2007 Jeep Wrangler has overhead valves (OHV).
The 2010 Jeep Wrangler has overhead valves (OHV).
The 2009 Jeep Wrangler has overhead valves (OHV).
The 2001 Jeep Wrangler has overhead valves (OHV).
The 2003 Jeep Wrangler has double overhead cam (DOHC).
The 2005 Jeep Wrangler has double overhead cam (DOHC).
The 2014 Jeep Wrangler has double overhead cam (DOHC).