What pressure should tyres be ? 215/70 R15 cp

[Gilly114]

Just had motorhome serviced , they had checked brakes , said they have put 59psi in all round , motorhome is 3500
swift Sundance 580 pr , does his seem about right or on the low side, anybody got any useful help, thanks

 

[chatteris]

i run my 3400kg motorhome at 75psi

 

[Mikeco]

i run my 3400kg motorhome at 75psi

That sounds a bit high especially at the front , my normal 3500kg van conversion has 59 front and 65 rear.

 

[chatteris]

ride is ok, always run tyres harder than stated pressures on vans and cars

 

[Phill D]

you need your axle weights
then look up the manufacturers pressure charts, this is Continental CP figures

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[colyboy]

Get it weighed , phone the tyre manufacturer, they will tell you the exact pressures you will need.

colyboy

 

[Bazzagas]

Just had motorhome serviced , they had checked brakes , said they have put 59psi in all round , motorhome is 3500
swift Sundance 580 pr , does his seem about right or on the low side, anybody got any useful help, thanks

My fiat ducato with 215/70R 15CP are ,according to the manufacture, 5.5 bar rear and 5 bar on front..plus or minus 0.05...

 

[Silver-Fox]

ride is ok, always run tyres harder than stated pressures on vans and cars

Why out of interest

 

[chatteris]

Why out of interest

Prefer the sharper feeling of steering and improved fuel economy usually run full load high speed pressure all the time

 

[Guigsy]

Prefer the sharper feeling of steering and improved fuel economy usually run full load high speed pressure all the time

There's a limit. Go too high and road imperfections cost energy as you bounce over lumps instead of carrying momentum (worsening mpg) and make the steering skaty and prone to tramlining. Plus it's tiring.

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[Rapido925M]

45psi front,52psi rear as per my Mercedes handbook for axle loads of 1600 and 1800kg

Gordon

 

[PlacidoD]

Front 3.5 Bar (51 PSI)
Rear 4.75 Bar (68 PSI)

(On 215/75 R16 C)

Chris

 

[Silver-Fox]

Prefer the sharper feeling of steering and improved fuel economy usually run full load high speed pressure all the time

Ahh so still within the guide lines.

If running over guide lines could prove a problem.

 

[Silver-Fox]

There's a limit. Go too high and road imperfections cost energy as you bounce over lumps instead of carrying momentum (worsening mpg) and make the steering skaty and prone to tramlining. Plus it's tiring.

And reduced grip when it’s wet.

 

[pj650]

64 psi rear and 55 psi front.
Gross weight 3560 kg,
On 215/70 R 15 CP. Gives a comfortable ride.

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[EuroTrotters]

Running my new Nexen 10 ply at 75 psi.

Previous s Michelin 8 ply could only hold 65 max

Same size as yours

 

[A S R]

120psi all round.

 

[Southend]

We usually run at about 3400 with the weight spread fairly evenly across the axles. Continental recommended 44 psi front and 54 psi rear. Much lower than our dealer set them. As others have said it's best to contact the tyre manufacturer with your axle weights.