I'm as happy for you to believe that, as I am for me to disbelieve it....it's the length of the guarantee which is irrelevant.
That's fine for him, but it's merely one example of the many cases of success at court, to be borne in mind when considering the many cases of failure.The cylinder has to be of "satisfactory quality" and "fit for purpose".
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The Jag owner was not to be put off, so he took the dealer to court and produced expert witnesses from Jaguar who testified that their engines were designed to last at least 100k miles.
The dealer lost and had to pay all the owners costs etc etc.
Please show me one single competent advocate who will provide an assurance of getting a cylinder replaced after two years of use.