Mobil 1 High Performance 15W-50 No Longer Made - What To Use?

[Brice Warnick]

Paul,
        Thanks very much for your sound advice.
Do you mean the regular Mobil 1 15W-50 or is it the new 15,000 Mile
15W-50? I am assuming it is the 15,000 mile stuff as I dont think the
regular Mobil 1 comes in 15W-50. 
       Thanks for letting me know that the 0W-30 is for newer Audis. 
        Whats up with Royal Purple 21 that a lot of Audi owners use? 
        I do a lot of stop and go in town driving. I use my car daily
for work and literally work out of my car.
        I also always buy the 5 qt size at Walmart. 
                                                                   Brice