Siskin
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I have a 2005 Tundra with 199000 miles. Always changed the oil every 3000 miles with Mobile 1. I am now on my first oil change with Valvoline R/P. After watching manny videos from Lake Speed Jr. ( The motor oil geek) I decided to give it a try . I'm a little over 1000 in. Going to change the filter at 1500 miles and cut it open. I have noticed that the truck does run a little smoother and the idle rpm's and temp has gone down. I have the cut opened filter from the last oil change before using Valvoline. More will be revealed.I also use Valvoline full synthetic "Restore & Protect" in all my vehicles. It definitely keeps the sludge from building up and keeps low-friction oil rings from sticking (reduces oil consumption)



































