About three years ago I transported two kegs across Australia
(Gold Coast to Sydney to Perth) during summer over a period of a month. I expected them to both be undrinkable as the temperature in my van often got to over 50 C.
On arriving in Perth, I tried the lager first and couldn't believe it actually tasted great!!! Full of confidence, I then tasted the ale and nearly died. I have no idea why I didn't stop and smell it first

.
In hindsight, I suspect that what the guys above are saying is true. Perhaps the lager keg retained its pressure whilst the ale keg may have had a leak?
I'm certainly glad I didn't throw the beer out before I left QLD as this "experiment" was quite most surprising.
Give it a bash and see how you go!
PP
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