Firstly, apologies for another post on the topic of silicates and their potential harm to water pump seals, especially OEM Japanese/asian type.
Does anyone have experience or information on this?
Are the mechanical seals different, are the Japanese using a soft/hard (carbon/ceramic) mechanical seal faces & the Europeans a hard/hard (silicon carbide/tungsten carbide) seal faces, at least industrially hard/hard mechanical seals are specced where abrasive media is expected to be encountered.
Where I work we overhaul (electrically driven) cooling water pumps that run 24/7 at 5 year intervals, most make it without failure, using either nitrite/borate treatment or Radicool SF, these are not silicated, however they are large open systems that are not be free from some abrasive particles.
@Gene K had the below to share, an appreciated post.
And @paulo57509 had this interesting Honda information.
Does anyone have any information or experience to add?
Does anyone have experience or information on this?
Are the mechanical seals different, are the Japanese using a soft/hard (carbon/ceramic) mechanical seal faces & the Europeans a hard/hard (silicon carbide/tungsten carbide) seal faces, at least industrially hard/hard mechanical seals are specced where abrasive media is expected to be encountered.
Where I work we overhaul (electrically driven) cooling water pumps that run 24/7 at 5 year intervals, most make it without failure, using either nitrite/borate treatment or Radicool SF, these are not silicated, however they are large open systems that are not be free from some abrasive particles.
@Gene K had the below to share, an appreciated post.
“Silicates definitely affect water pump life. A large trucking fleet (thousands of trucks) had water pump failures drop by something like 78% after 1 year of running EC-1 Coolant. After 2 years it dropped to almost none. I used to have to replace water pumps every 200,000-400,000 miles. I have had trucks with over a million miles on the water pumps since EC-1 came out. As a matter of fact since going EC-1 I havnt had to replace a single water pump.”
And @paulo57509 had this interesting Honda information.
FWIW, a copy of this was in with the paperwork I received when I get the Legend. While I don't use Honda branded coolant, I do use a non-silicate coolant.
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Does anyone have any information or experience to add?
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