![]() I also flushed it a second time with distilled water alone after dropping the vinegar solution.Ī lot of work, but worth it to avoid skewing the results.Įngine Ice Propylene Glycol Coolant Resultsġ7 minutes and 35 seconds after starting the bike and letting it idle, the fan finally came on briefly (~15 to 20 seconds) at 157 degrees Fahrenheit. I drained the factory coolant then flushed the engine with a recommended 50/50 mixture of distilled water and white vinegar in preparation for the Engine Ice. Out on the road, there are too many variables to account for and my dash doesn’t have a numbered temperature readout, unfortunately. That’s why I choose to base my review primarily on the numbers measured in that situation. The 790 tends to run hottest when left idling in the garage with no airflow. ![]() My former 1190 Adventure with its LC8 V-twin engine certainly didn’t need a heated seat for that reason but I’ve not noted that with the LC8C inline twin engine in my 790. KTM motorcycles are notorious for running hot. The rise and fall of the temperature is predictable, smooth, and steady like clockwork. It tends to only drop 10 to 15F before kicking off the fan and letting the temperature come up again to 164 or 165F. OEM Ethylene Glycol Coolant Resultsġ1 minutes after starting the bike and letting it idle the engine block temperature hit 165F and the cooling fan came on for about 30 seconds. This testing took place in my garage with an ambient temperature of 14 Celsius or 57F. This bike only has 8500kms (~5300miles) on it, is less than a year old, and has always run 4 bars on the temperature gauge even when running in very hot or cold weather. I first established a baseline reading using the OEM ethylene glycol in my 2019 790 adventure.
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