Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[TheBoy]

OAT based coolant can attack seals, so stick with manufacturers recommendation.

Some antifreeze doesn't mix with other types either

[Marks DTM Calib]

Anyone know if it's a good or bad idea to use the red in an old engine (1950s)?

Its very engine dependent, the view is no as the rubber used in older engines for seals is often a basic rubber or simple Neoprene which is more prone to attack from the modern antifreeze and will be very well past its best.

On the loco I use a basic 2 year antifreeze which has a silicate based additive and not the organic acid technology, the trouble is it needs changing every two-three years and at 410 litres required per change!

[dbdb]

Thanks.  Just for entertainment here is what eurocarparts say:

"Antifreeze comes in many colors, which are just the preference of the manufacturer. However, when checking the quality, no matter what the color, you need to look that the liquid is clear and not brown with bits of rust floating. This is a sign that the system may need flushing and antifreeze replacing."

I wonder who writes that stuff.