Fuel Gauge Shenanigans after Mixing Diesel/V-Power Diesel

rhorne · Feb 28th, 2022, 16:46

Hey guys, 2009 Volvo V50 owner.

This week I accidentally put £30 of Diesel V-Power premium in my car instead of the regualar cheap supermarket diesel I use - there was no label on the fuel pump in the petrol station. My car is diesel so this isn't a problem per se. I then let my fuel get to about 30% full before completely filling the tank with regular diesel.

Since then I've driven about 100 miles but my fuel tank is currently showing that I only have about 10% fuel but then also wildly fluctuates between 20% and 60%. Even parked up and stationary I can see the needle moving back and forth. It goes from 40 to 60 then back to 40 and then back up to 60. I now have no idea how much fuel there is in my tank, but based on the fact I only did about 100 miles from full, I should imagine there's half a tank

What on earth is going on? Is the mixing of diesels causing this or is it just a coincidence and likely my fuel tank sensors are failing?

Familyman 90 · Feb 28th, 2022, 17:19

Its nothing to do with the diesel. That is mere coincidence that is now misguiding you.

Looks like a fuel sender problem.

Feb 28th, 2022, 16:46	#1
rhorne New Member Last Online: Jul 11th, 2022 13:39 Join Date: Sep 2016 Location: Haworth	Fuel Gauge Shenanigans after Mixing Diesel/V-Power Diesel Hey guys, 2009 Volvo V50 owner. This week I accidentally put £30 of Diesel V-Power premium in my car instead of the regualar cheap supermarket diesel I use - there was no label on the fuel pump in the petrol station. My car is diesel so this isn't a problem per se. I then let my fuel get to about 30% full before completely filling the tank with regular diesel. Since then I've driven about 100 miles but my fuel tank is currently showing that I only have about 10% fuel but then also wildly fluctuates between 20% and 60%. Even parked up and stationary I can see the needle moving back and forth. It goes from 40 to 60 then back to 40 and then back up to 60. I now have no idea how much fuel there is in my tank, but based on the fact I only did about 100 miles from full, I should imagine there's half a tank What on earth is going on? Is the mixing of diesels causing this or is it just a coincidence and likely my fuel tank sensors are failing? Last edited by rhorne; Feb 28th, 2022 at 18:32.

Feb 28th, 2022, 17:19	#2
Familyman 90 The Brit Brick Last Online: Aug 13th, 2023 09:39 Join Date: Jul 2021 Location: Warwickshire	Its nothing to do with the diesel. That is mere coincidence that is now misguiding you. Looks like a fuel sender problem. __________________ *2005 C70 2.4T Collection convertible. 40,000 mile sunny day toy.*

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