Jiffy Lube's $100 automatic transmission flush, done by entry-level people, is incomplete. They will not change the automatic transmission filter, a key part of the flush, but which also violates the corporate 15-minute service rule. Where a Valvoline Service Center will routinely change the filter, having a brand name to protect. Jiffy's employees forget this key device, resulting in a mashed up filter, transmission starvation and failure, as all transmission fluid is blocked. Valvoline Service Centers, while using the same equipment, employ NIASE-certified technicians who know their business and routinely replace the filter. Goodyear and Firestone service centers also employ trained technicians who do the same. Valvoline, Goodyear and Firestone flushes tend to cost about $150 to $200.