Q: Mileage per gallon has decreased

asked by on

Hello, I used to give my car in Acura showroom, at 82K I did B2 service in Acura that time the mileage was local 17 long drive 23 . At 89K miles I have given it in Firestone for service and they used Penzoil Platinum engine oil but not sure what else they did but after that it started giving less mileage avg 14.5 local , 20 on highways. so in the next service at 93K miles I changed the only the oil in Acura showroom and its became even worse its only 13.5 local 17.5 on highways. I am unable to understand what is wrong. my car is Acura MDX 2008, mileage 93500.. I doubt that when I gave service in Firestone. Can you suggest what needs to be done to bring my vehicle back old mileage
My car has an automatic transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Mileage per gallon has decreased

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Crank No start

Since you say you have fuel pressure, ignition spark and injector spark then the engine should start. The only thing you may not have if you have all of these is no cylinder compression. If you broke the timing belt...

Q: Reduce oil level warning

Hello. It sounds like the oil is thinning out due to the heat of the engine when the car is operating at high speeds. This will result in the low oil sensor giving a false reading. There could also be...

Q: Gear slipping with AC on

What you are describing is often a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.