I was a bit concerned too, but both these temps sound exactly like mine--100 C is not uncommon on my gauge with hot weather and traffic--can crawl over 100 when it's over 90 outside and traffic too..What are you guys using for fuel additive/injector cleaner? The previous owner of mine says he never used it and I'm a believer in it. Or have you seen a process that makes sure they are nice and clean? Thanks in advance...allen