Mods to improve Euro fuel consumption

[shadou]

45 psi!!! why not go the extra 5 psi? overkill with the air mate

[tanalasta]

I too think 45PSI is overboard. In hot weather, this may be dangerously high.

You'd wear the centre of your tyres down unnecessarily as well as have a detrimental effect on grip, ride and handling.

For 17" Potenza's or C-drives I found 36PSI was more than enough.

[tony1234]

Agreed.No more than 40psi.38 seems to be a good compromise between firmness(and improving fuel economy)and ride quality.

[clayton4115]

yea well i am trying to get good fuel economy, i suppose overinflated better than underinflated !

[aaronng]

yea well i am trying to get good fuel economy, i suppose overinflated better than underinflated !

Between 40 and 45, you probably get very little gains. The biggest difference is around the 30psi area. I run 36psi.

[clayton4115]

yea ive got mine to 40 now !

[one4spl]

I got new Goodyear F1 DS G3s fited to my Euro about 10 minutes after picking it up from the previous owner.... and they are very noisy, so I went back to the shop and they put 42PSI (almost 300kPa) into them... they are a bit quieter, and still well short of the max 350kPa printed on the side.

I dont think steel belted tyres really change shape with pressure, the old "wearing in the middle" thing is an olds wives tale from the cross-ply days. It's just shifting the ride/grip/noise ratios.

[shadou]

No more than 38psi for any normal family sedan for me, even I use 36/34 psi on my moms avalon and that weighs around 15xx kg

[aaronng]

I dont think steel belted tyres really change shape with pressure, the old "wearing in the middle" thing is an olds wives tale from the cross-ply days. It's just shifting the ride/grip/noise ratios.

The wear in the middle still happens though when the tyre is overinflated though...

[phobolism]

So engine braking is not only good for your brake pads, it's good for your fuel consumption too. Nice!

your being sarcastic about the fuel consumption part right??

[aaronng]

your being sarcastic about the fuel consumption part right??

If you stay above 1500rpm while engine braking, the ECU shuts the injectors off. Of course, you'll spend fuel blipping the throttle to revmatch as you downshift.

[one4spl]

We have just done the first complete tank-full in our Auto 05 Lux and got 8.5l/100km. IMHO, thats a fantastic result for a mixture of highway and CBD driving. The Prius I used to get from the QLD govt car pool only got 5.4l/100km on average.

Bring on the Euro Diesel!! (in Auto, unlike the Mazda Diesel, please.).