Now that the Sonata engines use Timing chains (with tensioners) and Variable valve timing, is there any issue with the extended oil (regular, non-severe) change interval? I am assuming that these are hydraulic actuated. Do you think that this may be an concern as these engines get more miles on them? It is covered by the 100,000/10Yr warranty (right?) but most of us expect engines nowdays to last a lot longer that this.
- posted
16 years ago