can anyone advise me whether or not if its correct to increase a tow vehicles tyre pressure when a caravan is added and by how much say if the ball weight is 180kg
Baz421 said
08:03 PM Jan 11, 2016
mezza56 wrote:
can anyone advise me whether or not if its correct to increase a tow vehicles tyre pressure when a caravan is added and by how much say if the ball weight is 180kg
your tyre placard on your car should give recommended pressures for unladen and laden. Depends on tyre / rim size and profile so can't say much more now.
elliemike said
09:39 PM Jan 11, 2016
Do a SEARCH on this forum using "Tyre Pressures" you will get all the posts from years gone by on this.
Click on "SEARCH" top of page Type in "Tyre Pressures"
Mike
Bruce and Bev said
09:24 AM Jan 12, 2016
Two tyre retailers have said to inflate the rear tyres of our ute by an extra 5psi and the 'van manufacturer said the same for the van. So I run those tyres at 45psi, but let the air down when not towing to 40psi
Hylife said
12:49 PM Jan 13, 2016
Post 1989 the ADR requires ALL vehicles to state tyre pressures clearly in an easily accessable place.
Tow vehicle will have a tyre placard either on the door, door jam, pillar or glovebox stating recommended tyre pressures based on speed and load.
Caravans manufactured after 1989 are required by law to have a compliance plate and as we all know in addition to your VIN this has your weights etc, but you may not know that it also must state your manufacturers recommended tyre sizes, minimum load and speed rating and tyre pressures.
03_Troopy said
01:11 PM Jan 13, 2016
The problem is, the plate in caravans can be way off mark for tyre pressure, as mine is. Plate says 35psi, but it's actually closer to 48psi in real life.
Aus-Kiwi said
01:50 PM Jan 13, 2016
Yep atleast an extra 5Lb .. Big part is they are not 'under' inflated..
chooknphil said
10:55 PM Jan 15, 2016
I have used the 4psi rule quite effectively for tyre pressure. You can google it and get the concept fairly easy it works well for us. Chooknphil
OutbackMK said
09:56 AM Jan 16, 2016
2x the 4psi rule or alternative if you have a TPMS watch your temperature, if it increases over and above the ambient temp plus 10C you need more air, if it stays at ambient you could drop a little air out. (Over inflated tyres cause excessive suspension wear and a harsher ride with wear in the centre of the tyre.) Some of those corrugations on gravel roads are caused by over-inflated tyres and bad suspension on vehicles.
your tyre placard on your car should give recommended pressures for unladen and laden. Depends on tyre / rim size and profile so can't say much more now.
Do a SEARCH on this forum using "Tyre Pressures" you will get all the posts from years gone by on this.
Click on "SEARCH" top of page Type in "Tyre Pressures"
Mike
Post 1989 the ADR requires ALL vehicles to state tyre pressures clearly in an easily accessable place.
Tow vehicle will have a tyre placard either on the door, door jam, pillar or glovebox stating recommended tyre pressures based on speed and load.
Caravans manufactured after 1989 are required by law to have a compliance plate and as we all know in addition to your VIN this has your weights etc, but you may not know that it also must state your manufacturers recommended tyre sizes, minimum load and speed rating and tyre pressures.
I have used the 4psi rule quite effectively for tyre pressure. You can google it and get the concept fairly easy it works well for us. Chooknphil