Tyre pressures Forums

Cherekee

Hi Bob,

I have now done 15000 miles in my Starspirit with the following Michelin quoted tyre pressures and no problem. I run front at 55 psi & rear 60 psi. The ride is good and have decided not to bother with Airrides even. It all depends on your particular loading so you should fill it up as per normal and get weighed and send results to Michelin. We have 2 people and fit bikes on back as a guide. We found that the van when we first had it at 75 psi was like riding on tiptoe and very twitchy indeed as well as rattling like a tin can. The footprint on the road is much larger. I still get 26 mpg with the 2.8 HDI and tyre wear is normal.

As regards traction even at the above pressures these tyres are not very good on grass/mud. As and when I change I will fit mud/snow tyres as I ski in Winter. They are RUBBISH on snow.

Cheers

Alan

Saxmo

Many thanks for the feedback. I'm relieved that I am not the only one suffering from the jitters, rattles and slips at 75psi. We have a bike rack and no bikes and very rarely travel with fresh water tanks filled so our loading would most likely be less than yours. I will go with your tire pressures and see how things go and try and get to a weigh bridge to do some proper readings.

Regards - Bob

I might not wait for the tyres to wear out if they continue to give me traction issues!!!

EJB

With 1650 and 1750Kg maximum axle weights I run at 56lbs all round.

peterandirene

I've been running at 65 all round for over 12 months now. Ride is much better as is grip. Haven't had any problems except last weekend at Bakewell where I had to be pulled off a grass (muddy) pitch. But then again, so did 20 or more vans!

Peter

Saxmo

Well Many thanks to you all. I think we have conclusively nailed this one!!

Just for the record, I have dropped my tyre pressures down to 65 all round and the ride is completely different. We also didn't get stuck at Weston the other week so I was very happy.

Nice one folks

Bob

snaly

Can I re-iterate Christine's comments (Autocruise Customer Service Manager).

'Michelin have provided us with a tyre pressure listing and for your vehicle they give front 46 psi and rear 50 psi.'

Autocruise supply a Service Manual with their motorcaravans (or at least did so when I bought a Starspirit - which we have now parted with). In the Service Manual the tyre pressures were listed for all the range. They have specifically given Michelin the weights of the vehicles for Michelin to supply the correct pressure for their tyres.

The weights indicated on the inside of the door are for commercial tyres with a maximum load.

Tyre pressures vary between vehicles so much due to different weight distribution between the axles etc.

Regards

Steve

Cherekee

Hi Snaly,

I was not lucky enough to get a manual with mine. I presumed that the tyre pressures given by Christine were for unladen weights. I had mine weighed and pressures advised by Michelin but increased them slightly to allow for Autoroute driving and additional weight etc.

Alan

snaly

Yes that's true. Having a table with all the weights and tyre pressures of the different models in the Service Manual was very handy (if we loading heavily we used the tyre pressures from a model with weights similar to ours). Mind you, on the Starspirit, there isn't much user payload to make that much of a difference.
We've now changed to an Adria and don't have the luxury of a Service Manual with tyre pressures in although we have obtained them from Adria courtesy of Premier Motorhomes.

SwiftGroup

This is the correct information from our technical department. This supercedes any other information that individuals may have given.

X244 cabs - 15 inch alloy (72PSI front and rear) 16 inch alloy (79 PSI front and rear)

X250 cabs - 16 inch alloy (79PSI front and rear) 15 inch (72 PSI front and 79PSI rear)

If you have any individual queries please contact aftercare@autocruise.co.uk.

Regards

Kath