Quote:
Originally Posted by green van man
If it's orange it's not Volvo coolant, which is green. As it's not original I would flush and renew, preferably with Volvo as it's largely fit and forget so while possibly more expensive initially long term will save money.
The problem with non original coolant is you have no idea how it will effect seals etc. it may be fine but if it's not it can get expensive.
Paul.
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That's actually pretty worrying! If the original Volvo coolant is green, that is almost certainly ethylene glycol. The orange stuff is usually OAT so if those have been mixed then as i suggested above, a seriously aggressive flush is in order.