You have an S80, a 500SL and a Saab and you go to WalMart for service
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In life there are lessons, those lessons will repeat until we pass the
test. This lesson is simple. Either do the work yourself or find a
trustworthy dealer or independent mechanic to look after your cars for
you. Period. No chains. No coupon specials. No Sears. No WalMart.
Have a look at NBC LA's recent series on Jiffy Lube:
http://www.nbc4.tv/mechanicinvestigation/index.html
John