You might want to peruse this thread: http://www.hyundai-forums.com/index.php?showtopic=30238I just bought a 2010 Elantra GLS. What kind of oil is everyone on here using? Conventional vs. Synthetic blend vs. Full synthetic??
What about the viscosity? 5W20, 5W30, 10W30?
Interesting ... my '08 GLS has lists 5W20 as the recommended oil viscosity.The manual for my 08 recommends 5W30 (conventional is fine unless you do a lot of city driving or live in/near the desert.