Shell Rotella T 15w-40 is on sale at Advance Auto Parts... they also have a coupon going until August 13th for $30 off a $100 purchase.
click here:
http://shop.advanceautoparts.com/we...lla®-T-15W-40-Shell_8020590-P_N3259_T|GRP2046_____
click here:
http://shop.advanceautoparts.com/we...lla®-T-15W-40-Shell_8020590-P_N3259_T|GRP2046_____