I bought 5 qts and a additional qt of Valvoline full synthetic oil for my 2007 VW beetle 2.5 liter gas engine on line at walmart.com. Unfortunately I didn't notice they sent 5w-40 diesel blue 5 qt jug and 1 qt of 5w-40 euro full synthetic until after I changed the oil. I changed filter as well with a fram 20,000 mile filter. My question is can I go ahead and run the diesel for the next 15,000 miles or will this cause problem with the engine or do I need to drain it and start over.