Thicker 5w30 that isn't a3/b4

[mazdamonky]

Seeing as it is hard to find a 5w30 that is a3/b4 around here as most of our stores don't carry castrol edge a3/b4, I am curious what some of the thicker 5w30 oils are. I believe that 10w30 Castrol Edge is a little on the thicker side for a 30 weight, but was unsure of any others.

 

[4wd]

Mobil 1 High Mileage is a bit thicker and heavy on zinc ... Think it's a3/b3 in 10w30 ... But a1/b1 in 5w30 ...

 

[slacktide_bitog]

Mobil 1 High Mileage like already mentioned, and most 10w30 HDEO is thicker, too, such as Rotella T5 10w30. There's also a T6 5w30, but I haven;t seen it on the shelf.

 

[SR5]

The Mobil 1 High Milage oils are thicker and more loaded than the regular Mobil 1 ILSAC oils

Look at the regular Mobil 1 oils
Regular Mobil 1 5W30 has a HTHS of 3.1 and 900 ppm Zinc (SN, GF-5, dexos, A1/B1)
Regular Mobil 1 10W30 has a HTHS of 3.0 and 900 ppm Zinc (SN, GF-5, A1/B1)

Now look at the Mobil 1 High Mileage oils
Mobil 1 High Mileage 5w30 has a HTHS of 3.3 and 1100 ppm Zinc (SL, A1/B1)
Mobil 1 High Mileage 10w30 has a HTHS of 3.5 and 1100 ppm Zinc (SL, A3/B3)

Don't let the SL fool you, they are high quality modern oils, they just have too much Zinc & Phos too meet the SN & GF-5 limit. Think of them as Mobil 1 performance-Euro-race oils instead of the regular Mobil 1 ResourceConserving-ILSAC oils.

 

[Popsy]

I think what you're looking for is Mobil 1 0W40

Sorry, couldn't resist.

 

[KCJeep]

Pennzoil High Mileage and Castrol High Mileage are both thick for grade. I have had very good experiences with both.

 

[Gene K]

Supertech Synthetic WPP
5W30 - 3.2 HTHS
10W30 - 3.32 HTHS

The 10W30 is much more shear stable so in practice the 10W30 acts much thicker.

Castrol Edge 10W30 11.3 cSt, 3.2 HTHS
Castrol EDGE Extended Performance 10w30 11.4 cSt

Seriously just run Mobil 1 0W40 for 500 miles then test... It will be a 30.

Autozone has Edge 0W30 if you want an A3 30 that's not an HM.