just looking for some input. i have 2700 mile on the jl and just did a 1800 mile road trip about 2 weeks ago. i'll be heading out for another 1800 mile road trip in 10 days. after this trip i will have approx 4700 miles on the jeep. would this be any issue since i have not done the first oil change yet. i figure at 3000 miles i'd do the first oil change. so should i do an oil change berore or after the trip. the jeep shows 71% oil life.