well i went to the vavoline web site and tried the let us help you pick an oil.they stated my 09 santafe called for syn power because it was high performance vehicle and the oem recomonded it. i checked the owners manual and this is what it says.
use an api sj sl or sf gf3 or above 5/ 20 5w30 or 10/30for normal temps-18 or 5/20 for ecomony and lower temps hyundai recomends quaker state. it says the same thing for my 03 sonata with the 2.7 v6 i have Qs syn 5w30 4x4 in the santa fe and 5w30 super tec in the sonata by choice.does anyone who owns a hyundai have a manual that says you have to use syn oil in it or is this just marketing? it does not say recomends Qs in the o3 manual.
use an api sj sl or sf gf3 or above 5/ 20 5w30 or 10/30for normal temps-18 or 5/20 for ecomony and lower temps hyundai recomends quaker state. it says the same thing for my 03 sonata with the 2.7 v6 i have Qs syn 5w30 4x4 in the santa fe and 5w30 super tec in the sonata by choice.does anyone who owns a hyundai have a manual that says you have to use syn oil in it or is this just marketing? it does not say recomends Qs in the o3 manual.