cold spot
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If you wait for the t-stat to open up and feel both upper and lower hoses, they should be close in temp. Touching the fins of the radiator themselves will be fairly inconsistent.
If you have noticed your gauge getting hotter, then you might have blockage restricting flow. Green coolant is 3yr/36kmi while others go up to 5yr/100kmi but coolant does break down and gain corrosive properties after a while.
If you have noticed your gauge getting hotter, then you might have blockage restricting flow. Green coolant is 3yr/36kmi while others go up to 5yr/100kmi but coolant does break down and gain corrosive properties after a while.