I just thought I would post my experience with fuel economy here for reference. I drive a 2015 Jeep Compass Sport 2WD 2.0L with the CVT. It sat in my moms garage for 5 years straight, and when I came home I knew I would need to do a bunch of maintenance before I could drive it comfortably and safely.
When I first got it running again, I was lucky to get 200 miles on a tank. After all my maintenance and repairs, I now get 300+ miles when the low-gas light comes on. These are the things I did to my vehicle:
Oil change + filters
Cleaned the K&N air filter
Cleaned out the air box and replaced the foam PCV filter
New battery + terminals
CVT fluid change + both filters
Replaced broken CVT fill tube
New spark plugs and coils -
Flushed coolant
New rotors + pads
New drums + shoes
Here’s links to the parts I used:
Coils:
https://a.co/d/2uHmgKl
spark plugs:
https://a.co/d/dIKBzhI
CVT filters / Gaskets:
https://a.co/d/itBi2zD
Valvoline CVT fluid:
https://a.co/d/3paE7Iy
Fill tube:
https://a.co/d/0iVdxlM
Fill tube cap:
https://a.co/d/2fawEjf
Dipstick / Fill tube cap:
https://a.co/d/gacnGcf
CVT Pan:
https://a.co/d/5fzfGDY
Antifreeze:
https://a.co/d/cGCGzV6
Front brakes:
https://a.co/d/5GCD7L8
Rear Brakes:
https://a.co/d/6hp3Vwe
Brake Hardware:
https://a.co/d/1oVOIhq
Battery Terminals:
https://a.co/d/dgtghcF
One last thing to note: my mileage around town isn’t great, but on the highway, with spring/summer temps and assuming the Kansas winds aren’t fighting me along the way, I’m getting the numbers I mentioned earlier. But I also keep my highest speeds 65-70mph tops. I also drive in a way that my RPM’s stay as close to 2000 as possible, letting my speed drop on higher hills to maintain the RPM, and not romping on the gas when I drive around town. I speed up gradually and I drive my vehicle easy.
