Matt, you'll be fine with full synthetic even with the 9500 miles on your truck, and even if it's lived its entire life on dino oil. Heck the engine's not even really broken in until about that time anyway.

As far as Line-X, you might want to PM David (123Gone), our Line-X authorized vendor and see if he has any recommendations for a Line-X dealer in your area.

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2007 Tundra Limited Double Cab 4x4 Super White
Volant CAI
Pioneer AVIC Z-2 (hard drive upgrade to AVIC Z-3)
Key FOB Tailgate Lock (courtesy of Toxarch)
OEM back-up camera w/flip down monitor microswitch mod
Sirius Satellite Radio
WeatherTech Floor Liners
20" OEM alloy wheels
Line-X Bed liner
UWS Black Powdercoat Low Profile Toolbox
DU-HA underseat storage unit
JC Whitney Black Nerf Bars
Lund Interceptor II Bug Shield
Tekonsha Voyager Brake Controller