Gas Problems with My Lynx RS

[mreezy]

Hey experts and fellow Ford Lynx RS owners, I just got a Lynx RS CE and it was okay until I noticed the gas consumption. I loaded a 1000 on it Tuesday and it was almost 3/4 full, after two -three days, it has gone down near empty. I know how 2.0 gobble up gas and I've driven other 2.0 cars, but this was kinda insane. I drive San Juan, near the LTO to Ateneo. After checking the odo it's a 10 km drive. I've been observing my car and I'm not sure if I smell gas. I just want to know what you guys think? Is this how Lynx RS's are? Cause I plan on bringing it to a shop to have it checked.

[FWC]

Three-fourth tank is roughly 37.5 liters. Three days of traveling at 20 kms. per day is only 60 kilometers. That's only 1.6 kilometers per liter!

That's really insane. The worst I've done in my RS is roughly 4.5 liters per kilometer. And that's really hard driving as in red lining most of the time.

Better have you car checked. The mixture may be very, very rich.

Better still, have a Unichip installed. Depending on how far you drive, you can recover the investment within a couple of months to a year. And it's pure savings after that.

Before I had my Unichip installed, I used to average around 5.6 to 6.5 kpl, city driving (got a heavy right foot). Out of town trips would be between 9 to 10.5 kpl. After Unichip, I'm averaging 7.5 to 8.5 kpl, city driving. Highway driving would be around 12.0 to 13.5 kpl. That already includes occasional aggressive driving.

BTW, have your RS listed at the RS Registry at fordclubph.com. There are already about 35 of us registered there (out of the only 220 units released in the country). We've also a thread there on RS modifications.

[mreezy]

Thanks for the advice FWC, really really helped! I think there's something wrong with it. I've already registered but they haven't activated my account. I've already tried resending it like 10 times. You think you can help me?

[niky]

I'm checking your activation now.

Not much else we can say except for you to check your MAF (have it cleaned) and your O2 sensors... does it run funny? Hesitation? Roughness?

[vinj]

Since you also just got the car, bring it in to the shop for a engine check-over (tuning, filters, etc...) start with the basics.

[oj88]

Any bumper-to-bumper traffic on your route? Do you keep the engine running (so the A/C can operate) while say, waiting for someone? These are just some of the fuel economy (FE) killers.

Anyway, by my computations, you're most likely doing anywhere between 3-3.5 km/L.

Almost 3/4 tank = ~35 liters
Almost empty = ~15 liters

Used fuel is 20 liters for 60 kilometers traveled = approx. 3 km/L

You can do a proper computation by doing a full tank (automatic shut-off at the pump) and resetting the trip odometer. Disregard at this point how much fuel was loaded in your car.

Use the car as you normally would until almost empty or when the fuel low light comes on. Fill it up again to full tank (automatic shut-off at the same pump). This time, note how much fuel was loaded and get the reading from the trip odometer. Use the following formula to find out the actual fuel consumption.

Trip odo reading in Km
--------------------- = Fuel consumption in km/L
Fuel pumped in Liters