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tyre pressures

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8.9K views 11 replies 9 participants last post by  MarcW  
#1 ·
hi all, Astra 2.0cdti sri 2011(dth) tyres=225/50/r17 it has the eco button Stop/start comfort says 33psi all round and eco say 39psi all round so gentlemen which one? Simon :thumbs:
 
Discussion starter · #7 ·
have had tyres set at 35 psi all round and filled with nitrogen and had the tracking done,took it down to east mids airport whitch is 26 miles down the m42 (70 mph on cruse going there 57 mpg) coming back driving it like i stole it :mrgreen: 50.2 so a good result