Coolant sediment?
 

Hi everyone - just emptied my coolant as part of a service and due to general laziness the bottle of used coolant sat around for a week before dropping it at the tip.. after a week's settling I noticed there seems to be quite a bit of white sediment floating/suspended at & near the bottom of the bottle - just wondered if its indicative of anything more major or just old coolant in need of a change.. no mayo under oil filler, nothing on the radiator cap if there ever might be and oil that came out at the same time seemed fine.. bike running generally OK, maybe more noisy on front cylinder but could just be my paranoia and the general cct noisiness to not worry about.

The pic attached should shows what I'm talking about... Any thoughts oh mighty org? Put my mind at ease please :)
Ta,
Craig

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Re: Coolant sediment?
 

Since it's at the bottom I'd guess it's limescale. Use distilled water if you live in a hard water area or premixed coolant.

Re: Coolant sediment?
 

Used cooling system in coolant crud shocker!

Not.

I wouldn't worry about it, unless you've had some problem with coolant loss or oil contamination for instance.

Thanks both, has put my mind at ease - no particular oil contamination that I've noticed. I've been going through some oil but that's another issue with a seal somewhere I think so degunking everything so I can see just where its coming from. Wasn't expecting anything to come out with the coolant so just shocked me but hey I'll know not to worry in 2 years time when I do it again :)

Ta craig

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Re: Coolant sediment?
 

Id be cleaning the bottle out though ............ I had the same issue when i had the engine out and i noticed the bottle looking a bit ugly at the bottom.

Re: Coolant sediment?
 

FYI my Triumph had quite a large amount of sediment in the tank from new. Apparently it was something to do with the manufacturing process.