What kind of info can you guys give me for Mobil 1 Extended Performance 5w20 oil? I got me a new cash for clunkers Hyundai accent hatch. Drop the factory fill at 1100, then added Pennzoil Platinum 5w20. I just changed that at 3700 to the Mobil 1 5w20 Extended Performance. Is it a great oil? Or not that much better than pp, which I have a soft spot for? Sump capacity is 3.48 with filter. I use the Hyundai tank of a filter. Very impressed with this little car's value! Whats a reasonable change wth this set up? Thanks guys in advance!
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