![]() Have just put my T1N into service for myself, so I'm trying to weigh if I'm going to do the Evans PG/EG mix. Water can always be a producer of problems. I always thought that, because there is no water in the system, I had much, much better longevity to my hoses. With zero pressure, the squirting of coolant from a hose or other leak is a dribble. - Anyone ever try this stuff I was just reading about it on line and it says it removes the threat of corrosion, electrolysis, liner pitting, detonation and over heating. Since the boiling point is so high, it doesn't expand and push out of everything. When you have to drive 600 miles overnight, and a pinhole lead occurs in some part of the cooling system, you can just remove the radiator or degas bottle cap to eliminate pressure in the cooling system. The boiling points for the Evans product is over 300*F under zero pressure. My temperatures were not elevated as I saw with their straight PG product. Evans coolant does not have a problem with scale formation as water-based coolant can. In addition, although 50/50 water-based and Evans coolants have freeze protection to -40☏, Evans coolant will not solidify or expand, protecting from freeze bursts. I pulled a 18ft and then 24ft enclosed auto hauler all over. Evans coolant will not boil until 375☏, a full 100+☏ over the water-based products. In my big Ford bus with a 7.3PSD, I used the Evans PG/EG (which has some specific designation from Evans). For some racing motorcycles, I've just used RV PG as coolant, where allowed as some organizations don't allow PG in whole or partial in the coolant. For sometime, they have had a propylene and ethylene glycol mix (still no water) that is different from the straight PG mix. I've used quite a bit of the Evans product. Not a problem with racing, but can be with daily drivers. I recall Doktor A commenting that special brake hoses which are used for racing are not a good idea because they don't have longevity and require frequent inspection. As with so many of these racing related methods the reasons they are used don't necessarily transfer over to daily driving in spite of any marketing literature that you may read. Isn't there a safety reason for using other than glycol based coolant in racing cars too? They don't want slippery stuff ending up on the track. I believe Mother Mercedes has shortened the coolant change interval as they did the transmission fluid schedule, but check that because I'm not 100% on it. For the record, I'm not recommending that you don't change your coolant and the hoses more frequently. I became familiar with their products after repairing a 1983 CR250 magnesium alloy water pump/clutch cover and I've been using a waterless coolant to minimize deteriorization for a few years now. Gas engine hoses often seem to fail at the engine connection nipples where the heat is highest. They have ethylene and propylene glycol products. At least my T1N Sprinter diesel seems to run generally cooler than any of my gasser engines. Most antifreeze formulas also include ingredients to fight corrosion inside your cooling. Formulated with ethylene glycol or propylene glycol, antifreeze reduces the freezing point and raises the boiling point, so the coolant remains liquid under wider temperature extremes. I am very pleased with the Evans Waterless Coolant.Click to expand.The hoses probably have a good chance of lasting that long. Antifreeze-based coolant is crucial for street vehicles. NPG can be used in high performance street vehicles with high flow. We still produce and sell that original formula - NPG Coolant. propylene glycol-based coolants are allowed but there is a No Ethylene Glycol rule. There is no(zero) water in the Evans so no corrosion in any fluid passages of the this all aluminum engine. advanced compared to our first fluid which was essentially 100 propylene glycol. There is no pressure in the system and you can remove the cap without fear of getting scalded. The temp gauge has never been past 3 bars even on 100+ degree f days. He also came out when it was disassembled so I could see for myself the condition of all the internals. Propylene glycol-based coolants, the most common of which is Evans Waterless Coolant. He filled out my valve map to record all as found and as left dimensions. The service manager who I have known 35+ years also recommended it.īy the way the valves were all perfect 8's & 10's. I asked him what he thought of the Evans Waterless Coolant and he was very much in favor of it. I asked him to change out my cooling system Fluid for me while it was all apart. The problem is that waterless (100 propylene glycol) coolant has a considerably lower specific. ![]() The mechanic who did my valves has been there 22+ years and is very meticulous. Now this is for 1980s VWs: Definitely dont run Evans coolant. I had my valves last checked at 32,000 miles (1st check at 23,000) by my dealer who I have used for the last 35+ years.
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