70 year Old Geezer here with physical issues. Don't trust anyone to do my oil changes. I have 8 garage queens that get driven once a week here in Texas for 10 miles each to fully bring oil up to temp. One of these vehicles is a 16 Challenger Scat Pack 392 - 485 HP non turbo/supercharger. Bought it new and it has 10K miles on it. It has only covered 2K miles in the past 18 months. I'm thinking of sucking out the full syn 0w40 7 quarts and not changing the filter this time due to knee replacement and destroyed shoulder. It is next to impossible for me to struggle up off the floor. I know it is not ideal but I really don't want to go through the torment of getting under the car. Filter should be OK for another 2K - 18 months, right?