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Excess Gas consumption

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Namo
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Re: Excess Gas consumption

Post by Namo » Wed Dec 04, 2019 12:13 pm

Thanks for the response Oragex. So the for the parts I have replaced, They are all OEM original parts. I don't notice dragging as the car coasts freely but I will have that checked. I also changed transmission oil a month ago but will verify if oil looks clean. Haven't checked the fuel filter, Can this be a culprit even though I don't have any driveability issue? I also changed my Radiator 2 months ago as previous one started to leak and I'm running coolant not ordinary water. Issue was there before changing this parts. And I notice soot at the tailpipe


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Re: Excess Gas consumption

Post by oragex » Wed Dec 04, 2019 2:56 pm

How many km/miles on it? Maybe do a thermostat test as well - see if the upper hose gets warm 1 min after engine start. Tbh, such high consumption would happen from a serious issue. May also have a look at the timing marks - for the crank one search the forums. Lots of soot at the tail pipe means rich running



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Re: Excess Gas consumption

Post by E Showell » Wed Dec 04, 2019 3:03 pm

Soot at tail pipe signals rich running. You may have a bad ECT (Engine Coolant Temperature sensor). That will cause excess fuel consumption since the engine will think it is cold and the ECU will be enriching the fuel mixture so the engine warms up quickly. Check the wiring plug for the ECT. Coolant can seep down the wire and foul the electrical connector.


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Re: Excess Gas consumption

Post by Namo » Sat Dec 07, 2019 2:36 pm

Thanks for the responses guys, I have actually changed the ECT and the thermostat as well still issue persist. Will monitor the upper hose and inspect the ECT connector.


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Re: Excess Gas consumption

Post by E Showell » Sun Dec 08, 2019 2:25 am

Are your tires properly inflated? Put 'em at 32 PSI all around for your highway trip and run a bottle of Techron fuel injector cleaner through the gas tank.


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Re: Excess Gas consumption

Post by Georgeandkira » Sun Dec 08, 2019 8:15 am

I'd go with 36 psi for a highway trip.
I've read that Chevron Techron is designed to be used before a stint of local driving because the chemicals work on the injector nozzles upon shutdown.

I may have an analogous thread to start because I think my engine (2007 non-turbo automatic w/100K) has begun to warm up slowly going by the temp gauge. Maybe it's just Winter weather setting in.



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Re: Excess Gas consumption

Post by abscate » Sun Dec 08, 2019 1:44 pm

You will want softer tires and ride in Nigeria

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Re: Excess Gas consumption

Post by Rattnalle » Sun Dec 08, 2019 1:52 pm

You guys are running some seriously low pressures. 2,8 bars/41 psi is my regular pressure. I bump it another .1 bars for long highway trips. 205/55-16 or 195/60-16. Any lower and the car feels way too squishy for my taste. So really I'm running Volvo's recommended highway+high load pressure all the time.



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Re: Excess Gas consumption

Post by Namo » Wed Dec 11, 2019 12:01 am

I currently run 40 psi. Over here we do not have Techron. What we have is Total and I have actually used the fuel Injector cleaner. Will just wait and monitor things during my 490km road trip next week. Thanks guys


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Re: Excess Gas consumption

Post by Rattnalle » Wed Dec 11, 2019 12:10 am

That sounds very reasonable and should not affect consumption negatively.



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