That and Firefox is turning into a POS. I get almost done with this post and Firefox decides to update and freeze. Twice. Sweet. I even had a nice update about my last experiment
which has gotten my truck, Stinkerbutt, up to a repeatable 25.6 mpg going to and back from the shack (252.6 miles). The next goal is 30 mpg, the hardest of all to get to. I'm going to use a combination of the new tires and further aero modifications to the body.
For the THIRD attempt at posting, the tires on my truck are worn out and I'm using my handy federal rebate check for new ones (free money, free tires, how can I go wrong?). The current tires the Kelly brand and I am replacing them with Hankook RH03 tires that have an "above" average rolling resistance rating under the SAE J1269 tests, according to Consumer Reports (be prepared to dig for the results: Search for "rolling resistance", then "Blog: roll out the rolling resistance" THEN the link at the bottom of the blog entry, NOT the top one.). CR buys the J1269 results from (according to their blog) NERL (National Energy Research Laboratory). I've been doing the research since February and even called UMTRI (University of Michigan Transportation Research Institute) for some pointers. Now, the current worn out tires are very wide, over 9 inches of tread patch. The new tires have a tread patch of around 6.75 inches (same edge tread design - I'm told ribbed edges are the best for mileage by UMTRI)
My first attempt at ordering the RH03s met a dead end. I was also looking at the more expensive Michelin Cross Terrains and the Bridgestone D684, both with "above" average rolling resistance. Locally, the price is over $150 and no body can get them. Online at tirerack.com, the price is $81 + $20 shipping and they called me the next day to tell me that they can't even get a backorder on them; apparently, a manufacturer has bought the entire run from Hankook for a hybrid SUV. Four pages deep into Google, I found saveontires.com who actually, physically have them at $62 each, FREE shipping. I'll have them in hand next week.
Yeah, I know, 2% tops. 25.6 mpg + 2% = 26.1