V50 General : - V50 1.8 FlexiFuel Vs standard 1.8 Petrol

eeimrnn · Sep 5th, 2011, 17:05

Howdy,

I just purchased a used V50 1.8 SE flexi-fuel last week and in general I'm very happy with it. I left it back to dealer today to correct wheel alignment and I had a replacement 1.8 petrol for the day (non-FF).

Engine in the standard 1.8 seems much sweeter, smoother and more economical based on computer figures!! So I was a little dissappointed to hand it back! Dealer says the 1.8FF runs at a higher compression ratio and thus is a little more rough around the edges and less economical.....is there any way to reset the factory settings to the standard 1.8 petrol, now that Ethanol is no longer an option in the Rep of Ireland??

Thanks
Ronan

Ninja59 · Sep 5th, 2011, 17:25

i would of thought it was an inherent part of the engine if based on compression ratios?

Daim · Sep 5th, 2011, 17:32

Both engines have the same compression rates (both 1.8 adnd 1.8F have a 10,8:1 -> check THIS LINK for official Volvo numbers), same power output. The only differences in the engines, are:

1. valve seats
2. return pipe for fuel
3. different software to run ethanol mixes of all types

That is it. The 1.8F will automatically recognize the fuel type filled (measured by the lambda sondes). So the dealer is talking basically a lot of hot air.

If you are clever, you keep the 1.8F and have an LPG system fitted, as it is - together with the 2.0F - LPG compatible. All other petrols aren't supposed to be converted.

You can't say it is economical just by going on the non-calibrated computer figures... You work out your MPG/100 km/xl and see if that works for you

Sep 5th, 2011, 17:05	#1
eeimrnn New Member Last Online: Sep 6th, 2011 12:05 Join Date: Sep 2011 Location: Dublin	V50 1.8 FlexiFuel Vs standard 1.8 Petrol Howdy, I just purchased a used V50 1.8 SE flexi-fuel last week and in general I'm very happy with it. I left it back to dealer today to correct wheel alignment and I had a replacement 1.8 petrol for the day (non-FF). Engine in the standard 1.8 seems much sweeter, smoother and more economical based on computer figures!! So I was a little dissappointed to hand it back! Dealer says the 1.8FF runs at a higher compression ratio and thus is a little more rough around the edges and less economical.....is there any way to reset the factory settings to the standard 1.8 petrol, now that Ethanol is no longer an option in the Rep of Ireland?? Thanks Ronan

Sep 5th, 2011, 17:32	#3
Daim Brit in Germany Last Online: May 14th, 2024 08:50 Join Date: Jan 2011 Location: Bremen	Both engines have the same compression rates (both 1.8 adnd 1.8F have a 10,8:1 -> check THIS LINK for official Volvo numbers), same power output. The only differences in the engines, are: 1. valve seats 2. return pipe for fuel 3. different software to run ethanol mixes of all types That is it. The 1.8F will automatically recognize the fuel type filled (measured by the lambda sondes). So the dealer is talking basically a lot of hot air. If you are clever, you keep the 1.8F and have an LPG system fitted, as it is - together with the 2.0F - LPG compatible. All other petrols aren't supposed to be converted. You can't say it is economical just by going on the non-calibrated computer figures... You work out your MPG/100 km/xl and see if that works for you __________________ The Best Nation Is Imagination 2010 V70 (Type 135) D5 (D5244T10) Automatic (TF-80SC)

Sep 5th, 2011, 17:25	#2
Ninja59 Probably Akita's Toyboy.. Last Online: Dec 27th, 2023 22:24 Join Date: Jul 2010 Location: A House.	i would of thought it was an inherent part of the engine if based on compression ratios?

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