Originally posted by Thuundar80530: Mobil 1 is formulated for 'normal' oil changes...hence the reason it's a 'Wal-Mart' brand . Upscale synthetics are formulated to last much longer, and even give you a warranty. I've had analysis done on my oil after 25k, and it still has life left .
What are you talking about??? What "Wal-Mart Brand"????????????? Geez!
. Upscale synthetics are formulated to last much longer, and even give you a warranty. I've had analysis done on my oil after 25k, and it still has life left 
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