Normal
Here what I have found:The polymerization in motor oil is due to copious amounts of heat, oxygen, oxidants (mostly carbon steel in this case) and time - the four main 'ingredients' for polymerization of VO. (Unlike the 'fire triangle' - all 4 ingredients are not req'd for reaction, but the more of each and the faster it happens. Another 'ingredient' is UV light exposure...) All the cases of polymerized MO I've seen were due to serious engine/injector issues and/or early switchover and 'blending' or one-tanking VO. Some were from engines with excessive blow-by (poor compression, leaking valve guides, etc) and others from failed injectors.
Here what I have found:
The polymerization in motor oil is due to copious amounts of heat, oxygen, oxidants (mostly carbon steel in this case) and time - the four main 'ingredients' for polymerization of VO. (Unlike the 'fire triangle' - all 4 ingredients are not req'd for reaction, but the more of each and the faster it happens. Another 'ingredient' is UV light exposure...) All the cases of polymerized MO I've seen were due to serious engine/injector issues and/or early switchover and 'blending' or one-tanking VO. Some were from engines with excessive blow-by (poor compression, leaking valve guides, etc) and others from failed injectors.
