I went ahead and put in the 5 qts. which brougt it up to the full mark. The owners manual, which I purchased on ebay, on page 253 shows the 2.4 L engine taking 4 qts. with filter. The 2004 owners manual on line in a pdf file states the 2.4 L engine should take 5 qts. with filter.
A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all JL, JT, JK, TJ, YJ, and CJ models!