2016 CX-5 AWD vs 2015 FWD - MPG

[N7turbo]

That was the 2022 refresh or possibly 2021.5.

 

[Gunnarj73]

I just upgraded from a 2016, which I avg 22mpg and now a 2022 and after a 500 mile trip this week avg 30mpg.

 

[madar]

My 2016 averaged 37 mpg highway on a 3 hour trip to the beach a few years ago, happened on a set of new Nokian tires, never go that kind of mileage before those tires.

 

[gazelle]

Have you ever checked for dragging brakes on your 2016 AWD? Your's has (potential) problematic rear brake calipers that stick.

Does that apply to 2016 only?
Dealer replaced rear brake pads half a year ago on my '21 and last week they told me pads are at 6 (out of 10)

 

[HyFlyer]

Does that apply to 2016 only?
Dealer replaced rear brake pads half a year ago on my '21 and last week they told me pads are at 6 (out of 10)

Idunno if other years had service bulletins about the rear calipers.

Rear pads 40% worn in six months seems excessive but idunno your driving environment or style either. Your oem pads lasted 3-4 years so this wear on your replacement pads isn't lining up.

 

[jonnymopar]

@Irenicus, super dumb question and don't take this personally, but are you sure your girlfriend's car is a 2.5L? My 2.0L FWD never dips below 30mpg, even during the winter time with extended warm-ups. Summer is 33-35mpg. There are two other CX-5s in my family, both 2.5L AWD, and they sit around 25-27mpg with mixed driving.

 

[Irenicus]

Just did a massive road trip which was almost entirely highway driving at around 80-120km/hr. Lots of long uphills but also TONS of downhills coasting. Best tank was 7.0L/100k and averaged around 8.5-9.0L/100km exclusively highway driving

My girlfriend thinks the car does not coast well at all and there may be a break drag. I'm doing an oil change with my dad on the weekend and want to confirm this. Aside from changing the breaks how do you actually fix such a thing so that it will "coast" better and burn less fuel?

 

[Lazy2.5]

Just did a massive road trip which was almost entirely highway driving at around 80-120km/hr. Lots of long uphills but also TONS of downhills coasting. Best tank was 7.0L/100k and averaged around 8.5-9.0L/100km exclusively highway driving

My girlfriend thinks the car does not coast well at all and there may be a break drag. I'm doing an oil change with my dad on the weekend and want to confirm this. Aside from changing the breaks how do you actually fix such a thing so that it will "coast" better and burn less fuel?

By first confirming that your brakes are actually coasting.

She's probably feeling AWD drivetrain losses compared to her FWD.

Jack each side up and spin the wheels. Listen for any brake rub, wheel bearing sound etc.

 

[N7turbo]

Just did a massive road trip which was almost entirely highway driving at around 80-120km/hr. Lots of long uphills but also TONS of downhills coasting. Best tank was 7.0L/100k and averaged around 8.5-9.0L/100km exclusively highway driving

My girlfriend thinks the car does not coast well at all and there may be a break drag. I'm doing an oil change with my dad on the weekend and want to confirm this. Aside from changing the breaks how do you actually fix such a thing so that it will "coast" better and burn less fuel?

The cars don't coast well because they are designed to engine brake. They do not free roll.

 

[Mazdiod2]

After driving at higher speeds, stop and feel each hub and wheel to see if there is any overheating. Overheating could be brakes, but also other parts like the bearings.

Front-end alignment might cause some drag if it is not right.

 

[Lazy2.5]

The cars don't coast well because they are designed to engine brake. They do not free roll.

How is engine braking fundamentally different with these cars? Higher gear = less engine brake, lower gear = more.

 

[Mazdiod2]

If you find a dragging brake, try cleaning and relubing the caliper guide pins. I had issues with one of mine sticking a bit but no more problems since I lubed it.

 

[Lazy2.5]

If you find a dragging brake, try cleaning and relubing the caliper guide pins. I had issues with one of mine sticking a bit but no more problems since I lubed it.

Apparently CX-5's with the mechanical parking brake do not have this issue, but I would also check the parking brake actuator as well. Mine was seized due to corrosion, causing the calipers to seize, despite the rest of the caliper operating normally.