Join Date: May 2019
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Good afternoon ladies and gents, I m a proud first owner of a 2016 Kia Qouris 3.8l with 120k km on it and all the way from Dubai. Hope everyone is doing well and please forgive me on errors since this is my first post.
I would like to inform you V6 owners that through extensive research, I have found the optimal solution for those of you who complained about excessive vibrations and not knowing the proper fix.
Having my Qoursy for quite a while. I have been noticing uneven tread wear all around the tires in the long term, slightly heavy steering and audible steering whine. Along thinking the car is a big too heavy and underperforming on the highway.
These vibration and excessive tread wear issues never got resolved by the Kia maintenance center.
The good part:
It turns out that the OEM rims on the V6 model are 18x7.5, while the OEM tires are 245/50r/18
The maximum allowable tire width on a 7.5inch rim is 235 and ideal width from 215-225. So it was most probably the 245's caused the excessive vibration and also the rubber bulging out of the rims.
My recommendation based on standard measurement would be to install 235/50/R18's with a load index of 101
And believe me it has made a world of a difference after Installing them with balancing and alingment. Suddenly on the road I instantly felt Sharper handling, better grip due to stiffer sidewall, faster acceleration and braking along better gas mileage. The car lowered by 0.3inches which makes it feel very stable, and say goodbye to the floaty bouncy and annoying suspension feel.
It turns out the 235/50/r18's are the tire size used on many mid to large size luxury sedans just like the Lexus LS and older models of Mercedes S class.
Thank me later or by the time you install them 235's!