Hi all.
For some time i have bin trying to decide if i shoult use a acea a5/b5(HTHS 2.9-3.5) or a a3/b4(HTHS above 3.5) but that's not my question for now.
After reading a lot of TDS I have noticed that the the change from a5/b5 to a3/b4 often happens with a mm²/s at 100c at around 10. For example, my current oil fill is European synpower FE 5w-30 witch is a5/b5, it is 9.8 at 100c the. The liqui moly special F also a5/b5 is 10.0. but the liqui moly synthoil 0-30 witch is acea a3/b4 is only 10.1.
Can we conclude that an oil with a HTHS below 3.5 Will be below 10 at 100c and an oil with an HTHS above 3.5 will be above 10 at 100c.
Are oil properties a strait curve or are it a total coincidence the things I'Ve noticed.
Thanks
Søren
For some time i have bin trying to decide if i shoult use a acea a5/b5(HTHS 2.9-3.5) or a a3/b4(HTHS above 3.5) but that's not my question for now.
After reading a lot of TDS I have noticed that the the change from a5/b5 to a3/b4 often happens with a mm²/s at 100c at around 10. For example, my current oil fill is European synpower FE 5w-30 witch is a5/b5, it is 9.8 at 100c the. The liqui moly special F also a5/b5 is 10.0. but the liqui moly synthoil 0-30 witch is acea a3/b4 is only 10.1.
Can we conclude that an oil with a HTHS below 3.5 Will be below 10 at 100c and an oil with an HTHS above 3.5 will be above 10 at 100c.
Are oil properties a strait curve or are it a total coincidence the things I'Ve noticed.
Thanks
Søren