Hi, trying to decide, since my 2008 Rav4 says it uses 0W20 or 5W20 oil, should i wait the 5,000 miles before 1st change? Now coming up on 2,000 and 3 months. Too soon? Since the oil in it now is probably a semi-synthetic, was going to use pennsoil 5W20 till 5,000 and then use PP every 5 after that. Suggestions, thanks Tim