Since I only drive mine 4K a yr...I change it just before the fall Dragon run in late Sept or Oct...she gets raced a bit now then...so, she needs a drink more often...it is a very easy oil change...jack up drivers side, I got rid of the MB pan...exposing the drain...be careful with the washer on the drain plug, make sure filter is seated all the way, take her off the jack...put in 8 qts, check it after letting her warm up, may need to add up to 1/2 qt more...30 minutes tops...