I have a 2004 Acura TL that calls for 5w20 oil. I want to use regular not synthetic oil. What oil would you all recommend. I have always used Kendall in my cars, use now Kendall 5w30 in Honda and in my previous TL. Never had any problems, they have 5w20 in Kendall, just wanting to know what you think. Mobil 5w20 is hard to locate.