Hi Thom
IIRC there are two different Holts Radflushes - a one bottle system and a two bottle, more thorough, one.
I understand all the points you've made but I used the two part system and followed their instructions that you've shown above. Ok, I was careful about adding cold water to a hot engine etc but, I have to say, it seemed to work really well.
As Russ suggested, I added K seal afterwards but, 4000 miles later, all seems to be working well and my coolant is nice and clean.
Good luck.
Cheers
Julian
Ps It was a pain - filling it and flushing it over and over again but I think the end result was worth it - however allow quite a few hours to do it all - including block drain plugs etc.
IIRC there are two different Holts Radflushes - a one bottle system and a two bottle, more thorough, one.
I understand all the points you've made but I used the two part system and followed their instructions that you've shown above. Ok, I was careful about adding cold water to a hot engine etc but, I have to say, it seemed to work really well.
As Russ suggested, I added K seal afterwards but, 4000 miles later, all seems to be working well and my coolant is nice and clean.
Good luck.
Cheers
Julian
Ps It was a pain - filling it and flushing it over and over again but I think the end result was worth it - however allow quite a few hours to do it all - including block drain plugs etc.
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