mcgc0
PCGB Member
Searched for the correct or best type of antifreeze to use in my engine following a complete drain and thorough flush through. I will mix 50/50 with deionised/distilled water.
Surprised to see so many types out there. From what I see and read so long as it's phosphate-free then that's a start. Most current or modern antifreeze types are red/orange/purple in colour, usual ethyleyne-glycol based and with silicate inhibitors. I know for sure you can't/shouldn't mix types.
Some of the 944 techs out there recommend Prestone Dexcool (US-only, expensive). Otherwise it seems Comma antifreeze from Halfords. When I look at the data sheets for the many Comma concentrates there is the G48 given as for Porsches up to 1995 (but this seems to be the older blue type). Then there is G40 for recommended for Caymans, Boxters etc and of the 'red' type. Why? if still an all alloy engine why the difference? Might in the end just go to an OPC and get from there and take a hit on the cost.
What do you use?
Surprised to see so many types out there. From what I see and read so long as it's phosphate-free then that's a start. Most current or modern antifreeze types are red/orange/purple in colour, usual ethyleyne-glycol based and with silicate inhibitors. I know for sure you can't/shouldn't mix types.
Some of the 944 techs out there recommend Prestone Dexcool (US-only, expensive). Otherwise it seems Comma antifreeze from Halfords. When I look at the data sheets for the many Comma concentrates there is the G48 given as for Porsches up to 1995 (but this seems to be the older blue type). Then there is G40 for recommended for Caymans, Boxters etc and of the 'red' type. Why? if still an all alloy engine why the difference? Might in the end just go to an OPC and get from there and take a hit on the cost.
What do you use?