Unveiling the Truth About Oil Contamination in Water Coolants

Replace oil cooler. Fill cooling system w/ fresh water. Add a small(!) amount of detergent to coolant tank, run vehicle for a short bit. Drain. (flushed cooling system with 16L of coolant after the repair, ran tons of water through the reservoir) Replaced the radiator, thinking that ... GL 450 2007. It's still drivable. I just got an alert yesterday that coolant is low. Is this an expensive fix ? Engine coolers use fluid, which can be either coolant or water, to maintain the optimum temperature of the engine. Regardless of the fluid you are using, its ... Coolant can react to oil and make it sludge, which isn't good, and coolant in your lubrication system would be bad. So the next step is to ... The problem, in general, is that there is a leak between the lubrication system and the cooling system. There are only few obvious where this can happen. Hose / tap water is fine. Distilled is recommended only because it is convenient and reliable, more convenient than an analysis of tap water. It may be pushing oil into the system down in the waterpump area where maybe a gasket isn't sealing. I think that's the only pressurized oil ... Water is under pressure from the water pump whereas the oil is not as it is only draining. Hence water in oil but not vice versa and no exhaust ... What this guy says. Oil filter housing/cooler assembly is notorious for leaking on the Pentastar engine. I recommend you do it yourself, because ...