I know that Supertechs are bang for your buck, but what about the quality control. I just went to walmart today and picked up 5 ST4967, corolla/camry oil filters and 2 out of 5 Oil filters had a deform or unproperly cut "Anti Drain Back valve", I could even see it with a flashlight. I then stuck my finger inside and felt around and it felt like it was just not cut properly.
And look at the SAE test, what they put on the box is better than other brands.
SAEtest, supertech has 98% eff for HS806 while here's Amsoil's reports
http://www.pecuniary.com/newsletters/microns.html
and 99% for J1858 compare that to Pureone Purolator
http://www.pureoil.com/TEMP_old_site/faq.htm
What does every one make of this.
And look at the SAE test, what they put on the box is better than other brands.
SAEtest, supertech has 98% eff for HS806 while here's Amsoil's reports
http://www.pecuniary.com/newsletters/microns.html
and 99% for J1858 compare that to Pureone Purolator
http://www.pureoil.com/TEMP_old_site/faq.htm
What does every one make of this.