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I use Valvoline 5W-40 Synpower, approved VW 502/505. Audi/VW specifies 5W-40 over 0W-40 or 0W-30, but my dealer uses Mobil 1 0W-40. Comments62. Tony Bernheim. 0w-40 for gasoline engines/5w-40 for diesel engines... I use the recommended Mobil1 0W-40 in my 2004 Arc, at 271,000 miles I have zero complaints. Uses maybe a quart or two between changes but I go ... 5w-30 is fine, but I think you can use the Euro blends which come in 0w-40 and 0w-30. My Gen Coupe used 0w-40 Euro blend for most of its life. Based on a bunch of research on the Bob is the Oil Guy forum I settled on 0W-40 as a good choice for my ambient temps, specifically Mobil 1 0W- ... The best one is M1 0w-40 becuase it's in a good price range , very widely available (Walmart @ $25 a 5qt jug) . 0W reduces start up wear and tear. Reasonable substitutes for 0w20 would be a 5w20, 0w30, or 5w30. Anything over that would be pointless. The only reason they recommend 0w20 over ... Mobil 1 comes in two (at least) flavors of 0w40: Standard 0w40 that says "A40" approved on the back of the bottle and Mobil1 0w40 ESP X3 that ... Madikim, running Mobil 1 0w-40 will not hurt your vehicle, especially in the climate you live in. Since you can't find Mobil 1 5w-30 the 0w-40 ... Valvoline European Vehicle Full Synthetic 0W-40 Motor Oil is engineered with the highest quality synthetic bases oils and additives, making it our best motor ...