Fuel consumption in my 2010 xc70

haiyusheth123 · Post by **haiyusheth123** » 06 Jan 2022, 10:06

Hi I just recently bought xc70. Feel it consume more gas. What can be the reason. I have bulb failure position lamp. I sign on dashboard as well.

Post by **pgill** » 06 Jan 2022, 11:38

A broken Thermostat can cause increased fuel consumption

Here is my 2010 S80

The Thermostat fails around 10 years or 100,000 miles.

Good luck

Paul

PS get a Volvo or Land Rover Thermostat, aftermarket Thermostats are know to fail early

Post by **pgill** » 06 Jan 2022, 16:01

Take a look at this link

posting.php?mode=quote&f=26&p=578155

FYI I recommended that the person that started the thread change the Thermostat

Here is the outcome after replacing the Thermostat

gmched wrote: 16 Jul 2021, 04:27 I replaced it and it helped consumption is back to normal. The thermostat was stuck open.

truenorth · Post by **truenorth** » 10 Jan 2022, 20:05

What is the mileage of your XC70?
Assume the car's tune-up is kept up to date: spark plugs, air filters, motor oil, etc I also found my XC70's mileage improved noticeably after changing the transmission fluid.