how many litres will be needed for the cooling system? im sure its going to be more than 5 litres no? and the toyota coolant is ready mixed not concentrated so cant even use water mix with it without making it too weak.
does this stuff have toyota approvals in the list?
check this: http://www.eurocarparts.com/ecp/p/car-accessories/engine-oils-and-car-fluids/antifreeze-and-screenwash/red-antifreeze/?523770511&0&cc5_866
Ready Mix Ethylene glycol based Antifreeze, incorporating the latest in Organic Acid Technology (OAT) with winter protection up to -36 C upon dilution
Suitable for all engine types conforming to British Standards BS6580 (2010) and VW G-12/TL-774D & VW G-12+/TL-774F, MAN 248 & MAN 324, MB 325.3, Renault 41-01-002 .
It can be left in the system as a coolant and rust inhibitor for up to a maximum of 5 years in accordance with vehicle manufacturers requirements