Re: Toyo Celsius, Nokian WRG3, Continental TrueContact
To be honest, on the subaru it doesn't make a difference mileage wise. Doesn't matter if I'm running the studded Hakka 4's, the WGR3's or the summer orientated tires that came on it. It gets within 5 miles a tank irrespective of tires and driving style. Much better mileage than the Sienna unsurprisingly.
It's a legitimate question for the sienna though, I just don't have an answer sorry. I would still consider them. No experience with the other tyres but personally I would also take a look at the Continental since I know they have very good summer rubber compounds. I would be surprised if they didn't have good compounds for other conditions. I know for mountain bikes, continental have excellent compounds for wet slick conditions. Apples to oranges I know, but having the knowledge of what rubber compounds work in what conditions probably transfers within a company to different departments.