brett64b wrote:hi all, have querie as to why everyone says you should replace injectors every 120000km.I have 245000km on clock , change oil and filter every 5000km, fuel filter every 10000km. My hilux uses 9.1 litres per hundred it runs quieter than my sons that only has 50000kmon it. please advise why it is necessary to replace, thanks.
I cant answer your question but I do know a lot of it was scare mongering from mechanics and injector business's that all seem to have left the forum because of a substance hitting the fan episode that really wasn't anyones fault in Australia but left a lot of them legally liable for a lot of potential engine failures.
Like a lot of things, it boils down to individual engines, luck of the draw with the 4 injectors it was built with, fuel quality over the years, operating conditions and so on.
Who do you ask for a legit answer?? Maybe Denso id guess, to find out the expected lifetime in perfect conditions.