I have to admit, when it comes to oil changes I don't skimp. My vehicles have always been well maintained and I RACK the miles on them. My RX-7 had 188k before I blew an apex seal racing. I sold my Altima at 219k and it ran flawlessly. Katie is no exception... she has +186k & is rock solid, as far as I can tell
At every oil change, I start by adding 2/3 of a bottle of Seafoam to the crank case. I drive about 50 miles, mostly highway to keep oil pressure high, allowing the Seafoam enough time to work its magic.
After the drive, it's time for the actual oil change! I use 5qts of Mobil 1 Fully Synthetic 5w-30 + 1qt of Lucas Pure Synthetic Oil Stabilizer. To keep it all clean I use a Mobil 1 M-204 filter.
I change my oil roughly every 5000 miles; sooner if I'm doing consistant wheeling. Changing the Oil is also a good time to address the air filter. So at every oil change, I clean the filter
I use a Spectre Filter & clean and oil it w/ a K&N air filter cleaning kit.
What I save in replacing the air filter I more than make up for in oil changes, haha. At $8/qt Mobil 1, $16/qt Lucas, $10 can of Seafoam & $12 Mobil 1 Oil Filter, things can get pricey!Thank goodness for the Autozone Rewards card!