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Thread: XL tyres for 3.0 CDTi

  1. #1
    Regular Member wardy's Avatar
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    Default XL tyres for 3.0 CDTi

    There have been many threads on this, but i thought I'd share my experience with you.

    Changed to 225/45s last year. Didn't know anything about tyres, load ratings etc at the time. The tyres were Goodyear Eagle F1s 91 Y

    Found out on here that maybe I should have had XL ones i.e. 94 not 91.

    Checked with the tyre fitter, he said no 91s were fine, spoke to VXL who didn't know (said ask the tyre fitter ). Spoke to Goodyear / Dunlop technical who said 91s are OK. Finally got a return call from VXL technical saying 90 are ok not even 91.

    Messing about on the net the other day & found this site http://www.mygoodyear.co.uk/

    On here it lists 91 load for the HATCH & SALOON V6 CDTI but not for the Estate (which is what I've got) instead it lists the XL tyres only.

    Rang Goodyear again. This time they did confirm that the ESTATE required XL. The Hatch / saloon cars must be very close to the limit of the 91s and the Estate (and probably the Signum) due to their longer wheel base & weight, exceed them. Or can exceed them when fully loaded.

    I think this might be why we get so much conflicting advise on these tyres.

    Back to the fitters, who have agreed to off set a proportion of the value of my old tyres against new XL ones. Fingers crossed.

  2. #2
    Regular Member willc01's Avatar
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    Wardy, can you check your axle ratings on the car please as mine is in the dealers so don't have it to check. Michelin told me 91Y was sufficient against my plate.




    However, it must be noted that all load ratings, regardless of the tyres speed symbol, are for a maximum of 210 km/h (130 mph). After this speed the maximum load rating should be reduced.
    Some tyres, notably ZR rated, do not carry a service description. In this case it is advisable to consult the tyre manufacturer to determine maximum loads applicable.

    The speed symbol of a tyre forms part of the load index and is a letter or letter/number combination (agricultural tyres) that indicates the maximum speed at which the tyre can carry a load corresponding to its load index (except for speeds above 210 km/h - see load index section).
    Speed ratings start at A1 and go through to Y. Speed symbols W and Y are usually used in conjunction with Z. The speed symbol is usually followed by the letter R that denotes a tyre of radial construction.
    The table below shows the most popular speed symbols used on car tyres today.



    My Michelins need replacing after 15k and got treated badly by Michelin so I'm going back to the OEM Bridgestone XL as they wore out at 33k and never buy the dreaded M tyres again.



  3. #3
    Regular Member m8internet's Avatar
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    3.0 V6 CDTI manual : Kerb weight
    Hatch 1570kg
    Saloon 1562kg
    Estate 1662kg

    3.0 V6 CDI auto : Kerb weight
    Hatch 1592kg
    Saloon 1584kg
    Estate 1687kg

    It's borderline for the hatch and saloon
    I'd recommend XL for these, as in the event of losing a rear tyre whilst cornering at speed, the front tyres would be overloaded

    It's marginally over the limit for the estate
    It would be best to contact yoru insurer and ask for the tyre specs they approve for your vehicle, in WRITING

  4. #4
    Regular Member wardy's Avatar
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    Kerb weight for Estate manual is (I think) 1705kg (pre facelift which is slightly heavier)

    Front Axel is 1175kg & rear 1100kg according to the door pillar.

    Got F1 XLs on now.
    Don't know if it's me thinking it, but the ride feels firmer. Also had a problem with the rears wearing uneven (inside edge) where the previous XLs had been fine. Hopefully they'll be OK again now.

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    Regular Member willc01's Avatar
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    Quote Originally Posted by wardy View Post
    Kerb weight for Estate manual is (I think) 1705kg (pre facelift which is slightly heavier)

    Front Axel is 1175kg & rear 1100kg according to the door pillar.

    Got F1 XLs on now.
    Don't know if it's me thinking it, but the ride feels firmer. Also had a problem with the rears wearing uneven (inside edge) where the previous XLs had been fine. Hopefully they'll be OK again now.
    91 can take 1230kg so only leaves 55kg spare across the axle. Funny you should mention the rears, I've got the same problem on the Michelins but didn't have it on the Bridgestones with the inside edge.

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    Regular Member wardy's Avatar
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    I think the side wall on the 91s can't handle the camber on the rear axle.

    Keeping my fingers crossed that these XL F1s will be OK.

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    Regular Member m8internet's Avatar
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    Remember the XL extra load / RF re-inforced refers to the ability of the tyre to cope with a higher tyre pressure
    ZR in addition to the R for the Radial, refers to the speed rating, and means you can ignore the load and speed index, providing you do not require a R only tyre

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