0W vs 5W ...

[spasm3]

What "additives" would you be referring to? And what proof do you have to back-up your statement?

I believe it takes a stronger additive package to get 0w20 oils to perform as well as 5w20. No proof other than what I read and by studying oil samples.

@NiwradND

Here is a VOA comparison from a few years ago, that shows pennzoil platinum 0w-20 and pennzoil platinum 5w-20. Your assumption is incorrect. In fact the opposite.

Between the 2 oils the 5w20 has a higher ad-pack of ; Moly , Boron, Calcium detergent, Magnesium, Phosphorus, ZDDP. The TBN for the 5w20 is also higher at 8.4 vs 7.0.

The noak was the same for both.

I got this chart from @himemsys who did and posted the VOAs of various oils.

 

[Wireman1987]

lower viscosity oils in general 20, 16 and 8 normally start with more advanced base oils and strong additives, that's so they can maintain stability and protection while being thinner

 

[edyvw]

@NiwradND

Here is a VOA comparison from a few years ago, that shows pennzoil platinum 0w-20 and pennzoil platinum 5w-20. Your assumption is incorrect. In fact the opposite.

Between the 2 oils the 5w20 has a higher ad-pack of ; Moly , Boron, Calcium detergent, Magnesium, Phosphorus, ZDDP. The TBN for the 5w20 is also higher at 8.4 vs 7.0.

The noak was the same for both.

I got this chart from @himemsys who did and posted the VOAs of various oils.
View attachment 308692

Same Noack indicates better base stocks in 0W20.

 

[spasm3]

Same Noack indicates better base stocks in 0W20.

I agree. I was just addressing the ad-pack statements.

 

[edyvw]

I agree. I was just addressing the ad-pack statements.

30 or 40 ppm could be batch differences.
They are very similar.

 

[spasm3]

30 or 40 ppm could be batch differences.
They are very similar.

I agree. It does dispute the notion that 0w20 has higher ad-packs to perform as well as 5w20. The Mg, boron are significantly different though.

 

[kschachn]

lower viscosity oils in general 20, 16 and 8 normally start with more advanced base oils and strong additives, that's so they can maintain stability and protection while being thinner

To some extent, mainly to prevent excessive wear rather than improve upon it. There's still no global replacement for HT/HS, keeping parts separated is still the most effective approach. I for one do not wish to rely upon secondary mechanisms. Why should I?

 

[Wireman1987]

To some extent, mainly to prevent excessive wear rather than improve upon it. There's still no global replacement for HT/HS, keeping parts separated is still the most effective approach. I for one do not wish to rely upon secondary mechanisms. Why should I?

I’m just glad I drive vehicles that can’t out drive the oil nor do I try to.

 

[JohnnyJohnson]

Unless you live someplace that gets colder than -30 degrees why would you be even considering this?

 

[JavierH19]

In the summer temps the pumping difference between the two is infinitesimal. All else being equal a 5w should simply have less polymers than the 0w. But should rarely translates to does as most of the time the 0w is better blended and performs better in almost all if not all metrics compared to the 5w when looking at race to the bottom options which are usually off the shelf though they're not that bad either. Only with redline, amsoil, hpl and such do you usually get a lower noack and higher hths along with better shear resistance with the higher w rating which helps in the higher temps where oil temps are higher. But 0w-30 is better than both. Get Mobil 1 ESP 0w-30. I'd avoid the AFE version altogether.

 

[Patman]

Unless you live someplace that gets colder than -30 degrees why would you be even considering this?

Because there are a few oils out there where the 0w version is better than the 5w version. Take Mobil 1 ESP for example. The 0w-30 has the better base oils than the 5w-30. Or Mobil 1 0w40, it’s better than their 5w-40. Same with Castrol 0w-40 vs 5w-40.

I have the opposite view of you. Why would I ever consider the 5w version over the 0w? I see no real benefit. I also consider the fact that as you put more miles on the oil its winter rating will increase. So that 5w oil becomes a 10w eventually. So I would much rather start at a 0w and finish with a 5w.

 

[JohnnyJohnson]

Because there are a few oils out there where the 0w version is better than the 5w version. Take Mobil 1 ESP for example. The 0w-30 has the better base oils than the 5w-30. Or Mobil 1 0w40, it’s better than their 5w-40. Same with Castrol 0w-40 vs 5w-40.

I have the opposite view of you. Why would I ever consider the 5w version over the 0w? I see no real benefit. I also consider the fact that as you put more miles on the oil its winter rating will increase. So that 5w oil becomes a 10w eventually. So I would much rather start at a 0w and finish with a 5w.

Well you see I live where it rarely gets to zero and 5W oils are always easier to find on sale.

 

[tired]

@NiwradND

Here is a VOA comparison from a few years ago, that shows pennzoil platinum 0w-20 and pennzoil platinum 5w-20. Your assumption is incorrect. In fact the opposite.

Between the 2 oils the 5w20 has a higher ad-pack of ; Moly , Boron, Calcium detergent, Magnesium, Phosphorus, ZDDP. The TBN for the 5w20 is also higher at 8.4 vs 7.0.

The noak was the same for both.

I got this chart from @himemsys who did and posted the VOAs of various oils.
View attachment 308692

Sweet. Can fill out the "comparing VOAs to make oil quality comparison" square on my thread bingo card now.

 

[tired]

I have the opposite view of you. Why would I ever consider the 5w version over the 0w? I see no real benefit.

I think the only instance where it makes a difference is when you're considering a very high quality oil like HPL or AMSOIL. The narrower the spread, the fewer VIIs. Otherwise, other oil manufacturers will just use it as an opportunity to use lower quality base oils, like in the case of the examples you provided.