according to Valvoline.
"As reported in the July 24, 2008 issue of Jobbers World Online News, Valvoline launched a national advertising campaign that takes on competitor Mobil 1. The centerpiece of the campaign claim Valvoline SynPower has "four times better wear protection than Mobil 1."
http://www.jobbersworld.com/valvolineq&Apage1.htm
ExxonMobil's Response to Valvoline's Claim
http://www.jobbersworld.com/December 18, 2008.htm
"As reported in the July 24, 2008 issue of Jobbers World Online News, Valvoline launched a national advertising campaign that takes on competitor Mobil 1. The centerpiece of the campaign claim Valvoline SynPower has "four times better wear protection than Mobil 1."
http://www.jobbersworld.com/valvolineq&Apage1.htm
ExxonMobil's Response to Valvoline's Claim
http://www.jobbersworld.com/December 18, 2008.htm