Several months ago as a new customer to Big O here in Mesa I bought four tires for the F-350. While they were being mounted the salesman showed me a swab with soot on the cotton end that he said came from the dirty throttle body and they could service it for me...... I told him, "my truck is a diesel".... He just walked away. I won't be going back to Big O anytime soon. I saw some of the "diagnostic" swabs lying around and they all had "soot" on them. That's probably how they're furnished to the stores.. The genius who thought up that sales rip-off should be unemployed.
Support the Country you live in or live in the Country you support
2003 Sierra SP 26'Toy Hauler
1997 F-350, PSD, 4X4, red Crew Cab, long bed.
2007 Arctic Cat Prowler, Arctic Cat 500