Cutting the MAF mesh

[Xedosman]

WOW Xedos. Teach me your ways! [/b]

I just did

[Goliat6288]

hmmm i thought the slower u went, smaller throttle opening, in city the better the mpg? wow i was off.

Thank u sir for teaching me something new.

[Xedosman]

50-65 mph is ideal I believe. The higher the speed, the shorter time you need to apply throttle to cover a certain distance. But obviously up to a certain speed only, mainly due to air restistance. Actually a US interstate in a fairly flat district is far more suited to obtain good milage than our roads, which are like rollercoasters in comparison.

[Goliat6288]

unfortunately if u go upto 50-60 mph on a street around here... ur losing ur license if caught, or hitting some kid running after a ball, or some dum witch crossing the street with a stroller even though its green for cars and not for pedestrian crossing... so there goes that... thanks for the info anyway sir.

[ME2000]

Hahaha "some dumb witch". Xedos you come full of info. I learn too much. lol not that its a bad thing.

[parasocks]

Originally Posted by Xedosman

My Xedos is rated at 6,6 litres/100km @ 90 km/h. I am able to get nearly there during a long trip, fully loaded. I've never tried alone in the car because then I tend to drive harder. But even when really driving hard, like cruise @ 80 mph and flooring it big time when passing trucks and stuff, I recieve less than 10 litres/ 100 km. What I do when I cruise is keep the throttle at rest to maintain wanted speed, allow the speed to drop abit up inclines, keep the same speed through even sharp bends if possible, keep a decent distance to cars in front of me unless I want to pass them, avoid using cruise control (of course, ruins milage big time), coast instead of braking when slowing down, engage throttle mid turn to engage TCC before exiting the turn, hence accelerate with TCC engaged, keep the tire pressure stock but increased as recommended when loaded, avoid using AC unless very hot, keep windows and roof closed, accelerate quite determined up to cruising speed. Übersmall throttle openings means the slushbox keeps slushing for a longer time and reduces efficiency. I basically slam it up to cruising speed, really

Supermiler? Well, the entirely stock 4-pot Mazda 6 estate 5-speed has been convinced to give 6,0 litres/100km during work commuting which is 25km each way, with stud tires

Very interesting post, thanks.

I have a 1999 2.3 S, and I've seen km ranges for a tank between 350km and 550km, so how you drive really makes a difference. And it's not what you'd think either that wastes gas. I find this car can go pretty fast without a huge decrease in mileage, but coasting I've found is the #1 help.. Reducing speed up hills, gunning it on the downslope, and choosing a good route.

I used to think speed up hills, and coast down, and it's hard not to, but it's wrong I think.

Can I get your thoughts on coasting in neutral? There's a couple places in my standard route (driving wife to work as an example, especially at night) where I can coast for a long time in neutral, so I do that. Not sure if that's bad for the engine though. After I've slowed down I kick it back into gear, pause for it to do its thing, then slowly ramp up my acceleration.

In neutral I can feel my car pick up speed right away with the engine out of gear, and it coasts better.

Oh, another trick is when I get to the speed I want for highway coasting, try to let off the gas ever so slightly.. Many times I can keep the speed with less pedal.

What kind of KM ranges do you get on a tank?

[Xedosman]

I'm not sure how coasting in neutral affects the auto tranny in the Milly/ Xedos; if there is a fuelcut feature or not. Because most modern cars with a manual tranny have fuelcut during coasting, downwards 1000 rpm. Which means zero consumption.
I'd guess coasting won't improve the milage in your Milly though. Just my 2c
Anyway I've obtainened 6,8 litres /100 km without coasting, and been very close to obtaining 800 km (497 miles) on one tank of gas; 795 km

[Saint_]

FYI. My 2.3 stats when idling with everything off:
MAF flow: 2.48 g/s
Intake pressure: 100 kPa
Coolant: 96C
Intake air: 46C (stock setup)
AMB: 21C

For closed loop operation this translates to a mere 0.22 US gallon/hr consumption. Millenia has fuel cut, but it doesnt save any significant amount of fuel.

MAF flows for other situations:
Full fan: 2.7
AC on, half fan: 4.6
heads on: 2.68
head+fog: 2.74
brakes: 2.5 (LED taillights)
R: 3.16
D:3.16
D+AC: 5.73
Radio on (cd): 2.48 (no change)
Rear defrost: 2.68

[bigb]

hehe gun the gas and see what those g/s values jump to