#### Gokhan

Thread starter

How come they just tested Amsoil OE and not their higher grade oils?

It turns out that PQIA did test Amsoil Signature Series 5W-30 in 2012 but I hadn't gone that far back in PQIA tests when I made the list. Here are the numbers. Note that 2017 Amsoil Signature Series 5W-20 using Amsoil data exactly ties the discontinued 2013 Pennzoil Ultra 5W-30 using POIA data:

Code:

BOQI DV-30 NOACK Date Oil

79.2 3,827 6.60 2013 Pennzoil Ultra™ 5W-30 API SN ILSAC GF-5 (PQIA data, discontinued)

79.2 4,008 6.30 2017 Amsoil Signature Series 5W-20 (Amsoil data, 2017 formula)

77.4 3,398 7.60 2012 Amsoil Signature Series 5W-30 (PQIA data, 2012 formula)

67.4 3,954 7.50 2017 Amsoil Signature Series 5W-30 (Amsoil data, 2017 formula)

37.1 4,945 10.90 2013 Amsoil OE 5W-30 API SN ILSAC GF-5 (PQIA data, 2013 formula)

? ? ? 2018 Reformulated Amsoil Signature Series 5W-20 (Amsoil data, 2018 formula)

? ? ? 2018 Reformulated Amsoil Signature Series 5W-30 (Amsoil data, 2018 formula)

Originally Posted By: Wick

Those nubers are from Signiture Series just last week they were formulating with those numbers

Do you mean that there is a new version of Amsoil Signature Series coming up? It will be interesting to see how their BOQI numbers will look like but they seem to have been coming down over time.