Tyre weight rating and XL question

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Yes, I know it has been asked many times, but usually can lower ratings be used.

I'm looking to get some 225/45 R17 91V tyres (Vredestein Quatrac 3), but most shops seem to only stock 225/45 R17 94V XL.

Can I use 94 XL instead of 91 normal load? Seems I should be able to, but still unsure and its quite an expense so I don't want to get it wrong.

Thanks.

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Thanks guys.

Gave up on the Vredestein as mytyres didn't want my money so went elsewhere for a set of Falken Ziex ZE-912 225/45 R17 W (94).

94 rating, but not XL so should be fine. £300 cheaper!

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Ended up with 94Z XL continental. Garage and blackcircles both recommended 94xl. Audi said either 91 or 94, but didn't know what I meant by XL!