Originally Posted By: bahnas
Hello, I own an accent 2006 Automatic and was wondering about the best Automatic fluid i should use with Specs SP III and i found alot of fluid with the right specs but i compared alot of fluids and found that some fluids viscosity are 6 cst at 100 Celsius and some are at 7 at 100 Celsius, so I was wondering if i chose the 6 Cst at 100 Celsius will i have a better fuel economy and the same protection from friction?
In the United States, there are a lot of choices that, according to manufacturers/retailers, will work for SP-III. Other than Hyundai/Kia/Mitsubishi branded OEM products there are Beck Arnley, Idemitsu, Valvoline, Castrol, Red Line, etc fluids. Not sure what is available where you live.
I've used Hyundai OEM fluid as well as Valvoline Import Multi-Vehicle full synthetic fluid (blue bottle) in 2009 Hyundai Sonata with 5-speed automatic. The Valvoline fluid meets these specs based on a product data sheet: Mitsubishi Diamond SP-II and SP-III applications; Hyundai/KIA SP-II and SP-III applications. I posted two analysis reports in the UOA section of the forum: 1) used OEM sample, 2) used mixed OEM/Valvoline sample. In both cases, viscosity was about 7 cSt at 100 degrees C.
Based on a 2017 PDS, Valvoline MaxLife available for sale in the US is of lower viscosity than Valvoline Import but I haven't heard complaints about it performing worse than fluids with higher viscosity. According to manufacturer it meets Hyundai SP-II, SP-III, SP-IV, SPH-IV, SP4-M, SP-IV-RR among many other specs.