I recnetly puchansed a 1994 Ford F250 IDI non-turbo . The previous own just changed the water pump about 6 months ago and flaushed the cooling system and replaced with ( gold color ) Prestone Extended Life antifreeze but didn't add in the any of the cooling system additive ( called FW16 in the owner's manual ) . Is this OK with this kind of antifreeze or do I need to put some in ? - thanks
- posted
19 years ago