DrDusty86 said:The application is a huge part of how an oil performs.
For example Toyota relishes their mpg's,so they custom tailored an oil that has a high viscosity index and high in friction modifiers so the engines have as little drag at start up as possible which can have a significant effect on how the EPA tests and rates fuel consumption. An oil with a lower viscosity index and less moly will consume more fuel at start up until the oil has reached operating temp,at that point the ht/hs value has more bearing on pumping resistance.
You're on the right track but HTHSV has an effect at all start-up temp's down to well below freezing.
The fact remains that M1 has superior viscosity characteristics to PP.
It is lighter on start-up and has a higher HTHSV for greater high temp' protection so you are getting the best of both worlds and M1 0W-20 is not even a high VI oil, just relative to PP which has a very low VI for a 0W-20 grade.
In fact PP 0W-20 is slightly heavier than PP 5W-20 and since PP 5W-20 is more readily available and cheaper it's actually a better choice particularly in a climate like Florida.
DrDusty86 said:The application is a huge part of how an oil performs.
For example Toyota relishes their mpg's,so they custom tailored an oil that has a high viscosity index and high in friction modifiers so the engines have as little drag at start up as possible which can have a significant effect on how the EPA tests and rates fuel consumption. An oil with a lower viscosity index and less moly will consume more fuel at start up until the oil has reached operating temp,at that point the ht/hs value has more bearing on pumping resistance.
You're on the right track but HTHSV has an effect at all start-up temp's down to well below freezing.
The fact remains that M1 has superior viscosity characteristics to PP.
It is lighter on start-up and has a higher HTHSV for greater high temp' protection so you are getting the best of both worlds and M1 0W-20 is not even a high VI oil, just relative to PP which has a very low VI for a 0W-20 grade.
In fact PP 0W-20 is slightly heavier than PP 5W-20 and since PP 5W-20 is more readily available and cheaper it's actually a better choice particularly in a climate like Florida.
Is the PP 0w20 really thicker than PP 5w20 at start up? Really?
DrDusty86 said:The application is a huge part of how an oil performs.
For example Toyota relishes their mpg's,so they custom tailored an oil that has a high viscosity index and high in friction modifiers so the engines have as little drag at start up as possible which can have a significant effect on how the EPA tests and rates fuel consumption. An oil with a lower viscosity index and less moly will consume more fuel at start up until the oil has reached operating temp,at that point the ht/hs value has more bearing on pumping resistance.
You're on the right track but HTHSV has an effect at all start-up temp's down to well below freezing.
The fact remains that M1 has superior viscosity characteristics to PP.
It is lighter on start-up and has a higher HTHSV for greater high temp' protection so you are getting the best of both worlds and M1 0W-20 is not even a high VI oil, just relative to PP which has a very low VI for a 0W-20 grade.
In fact PP 0W-20 is slightly heavier than PP 5W-20 and since PP 5W-20 is more readily available and cheaper it's actually a better choice particularly in a climate like Florida.
So your saying that for the best protection on start-up and high temp Mobil 1 AFE 0W-20 would be the way to go?
DrDusty86 said:The application is a huge part of how an oil performs.
For example Toyota relishes their mpg's,so they custom tailored an oil that has a high viscosity index and high in friction modifiers so the engines have as little drag at start up as possible which can have a significant effect on how the EPA tests and rates fuel consumption. An oil with a lower viscosity index and less moly will consume more fuel at start up until the oil has reached operating temp,at that point the ht/hs value has more bearing on pumping resistance.
You're on the right track but HTHSV has an effect at all start-up temp's down to well below freezing.
The fact remains that M1 has superior viscosity characteristics to PP.
It is lighter on start-up and has a higher HTHSV for greater high temp' protection so you are getting the best of both worlds and M1 0W-20 is not even a high VI oil, just relative to PP which has a very low VI for a 0W-20 grade.
In fact PP 0W-20 is slightly heavier than PP 5W-20 and since PP 5W-20 is more readily available and cheaper it's actually a better choice particularly in a climate like Florida.
Is the PP 0w20 really thicker than PP 5w20 at start up? Really?
Yes but not a lot. It's due to it's low 164 VI vs 169 for PP 5W-20.
It's about 3% lighter at 40C, 5% lighter at room temp's and 8% lighter at 32F.
The original PP 0W-20 was lighter but the main point is that PP 5W-20 is a great oil and is cheaper but it technically won't pump at -40 degrees which based on the last time I was in Florida during the winter doesn't seem to be all that important.
DrDusty86 said:The application is a huge part of how an oil performs.
For example Toyota relishes their mpg's,so they custom tailored an oil that has a high viscosity index and high in friction modifiers so the engines have as little drag at start up as possible which can have a significant effect on how the EPA tests and rates fuel consumption. An oil with a lower viscosity index and less moly will consume more fuel at start up until the oil has reached operating temp,at that point the ht/hs value has more bearing on pumping resistance.
You're on the right track but HTHSV has an effect at all start-up temp's down to well below freezing.
The fact remains that M1 has superior viscosity characteristics to PP.
It is lighter on start-up and has a higher HTHSV for greater high temp' protection so you are getting the best of both worlds and M1 0W-20 is not even a high VI oil, just relative to PP which has a very low VI for a 0W-20 grade.
In fact PP 0W-20 is slightly heavier than PP 5W-20 and since PP 5W-20 is more readily available and cheaper it's actually a better choice particularly in a climate like Florida.
So your saying that for the best protection on start-up and high temp Mobil 1 AFE 0W-20 would be the way to go?
I know protection is the number one thing at the back of everyone's mind in choosing a motor oil but in most applications it's just about efficiency, all premium syn' oils will ensure very long engine life. Yes M1 is somewhat lighter on start-up and has a higher HTHSV but the high temp' protection is still being more than met by PP and being heavier on start-up likely would not be measurable in terms of increased engine wear.
The truth is I'm not recommending either of these oils but rather TGMO or Mazda moly 0W-20 which are clearly more efficient motor oils while maximizing engine protection.