And from Michelin UK 22.5" rim truck tyre.
"The influence of tyre pressure on fuel consumption
Inflation pressure has a proven influence on fuel consumption. An unsuitable inflation pressure increases the rolling resistance of tyres and therefore the vehicle’s fuel consumption.
Under-inflation by 1.5 bar (21.7 psi) = 1% excess consumption
Excess consumption when tyres inflated to 7.5 bar (109 psi) not the recommended 9 bar (130.5 psi), i.e. 17% over-inflation" business.michelin.co.uk/help-ad … t-pressure
Screedygrab:
Evening all.
I would like to use an air line with gauge to check the pressure on my tyres, would be handy for a puncture possibly. Daf cf euro 6.
Remember ages ago seeing a driver plug a tyre and then using an air line running off the tank. I don’t know if you need a quick coupling or bolt the hose direct.
Basically, not got a clue.
Any ideas would be handy.
Thank you
For the love of God stay back from inflation of tyres if you don’t actually know what you re doing, buying a cheap attachment and hoping for the best is a sure fire way of a serious accident in the making.
I have seen a hgv tyre explode by over inflation whilst out a cage and it was horrible
Split rim type, tubed tyres must always be fitted and inflated in a cage.
I thought not with tubeless solid rims?
Ed to add
We are discussing topping up the pressure on an otherwise OK tyre, aren`t we?
Not a full tyre change or repair?
Not a visibly bad tyre with cords exposed, overheated or anything else.
Not seen a tyre fitter use a cage for years.
Only speaking for myself here, but I wouldn’t attempt to pump up a tyre or fix anything like that.
My job is to check the tyres visually and be reasonably satisfied they are legal.
If the tyre needs changing on a motorway on a Friday afternoon, so be it, I have to wait for the fitters.
Having a tyre pressure gauge to simply check your tyres isn’t a bad idea however.
If you run a step frame on 15" wheels do you still need 140 psi ■■
Is it still the case that only Michelins last the distance
If so PCL were the tyre inflators of choice. Tyre Inflators | PCL
Screedygrab:
Evening all.
I would like to use an air line with gauge to check the pressure on my tyres, would be handy for a puncture possibly. Daf cf euro 6.
Remember ages ago seeing a driver plug a tyre and then using an air line running off the tank. I don’t know if you need a quick coupling or bolt the hose direct.
Basically, not got a clue.
Any ideas would be handy.
Thank you
These are the best tyre pressure gauge there is. Also made by PCL. Not cheap at around £40, but last forever, and unless you run over it with a dozer, it will give years of service.
If you are on trucks with a red line, artic or drawbar rigid, then as someone else has said, you can have a suitable air line with a double ended valve connector fitted. They’re not cheap either, but I reckon they are well worth carrying, as they can save you hours waiting for assistance, and potentially a towing charge off the motorway.
whisperingsmith:
If you run a step frame on 15" wheels do you still need 140 psi ■■
Is it still the case that only Michelins last the distance
If so PCL were the tyre inflators of choice. Tyre Inflators | PCL
Screedygrab:
Evening all.
I would like to use an air line with gauge to check the pressure on my tyres, would be handy for a puncture possibly. Daf cf euro 6.
Remember ages ago seeing a driver plug a tyre and then using an air line running off the tank. I don’t know if you need a quick coupling or bolt the hose direct.
Basically, not got a clue.
Any ideas would be handy.
Thank you
These are the best tyre pressure gauge there is. Also made by PCL. Not cheap at around £40, but last forever, and unless you run over it with a dozer, it will give years of service.
If you are on trucks with a red line, artic or drawbar rigid, then as someone else has said, you can have a suitable air line with a double ended valve connector fitted. They’re not cheap either, but I reckon they are well worth carrying, as they can save you hours waiting for assistance, and potentially a towing charge off the motorway.
Thanks for that, much appreciated.
I’ll see what the mechanic recommends regarding hose attachment(rigid)
All the best.
tyre inflators used to come standard in older lorries like Volvo Daf and Scania they could be used in reverse too to charge the secondary air system from a spare tyre.
Simple to make up using a standard test point adaptor, flexible hose and a Schrader valve fitting.
