Superior Precision and Durability. Easy-to-Read DynaFact Gauge. Measures engine oil temperature. Suggested for vehicles that see heavy-duty use. Allows proper lubricant warm-up or cool-down to safeguard engine life. Color-coded face reads at a glance. 1-Year Limited Warranty. Mounting systems for all of our gauges are available. Temp Gauge Kit, Engine Oil for use with Dodge 5.9L.