Is it worth spending about $4.00 more

[hammersley]

per gallon to get Valvoline PB Extreme http://www.valvoline.com/pages/products/product_detail.asp?product=103 there spec sheet... .





Help these specs are confusing to say the least - for example compare Viscosity @ 100 for PB of 14. 7 vs 15 for Shell..... there are other examples but I don't know what they mean... ... i. e. which way is better???



Typical Properties 5W40

Viscosity @ 40 C, cSt 89. 4

Viscosity @ 100 C, cSt 14. 7

Viscosity Index 172

CCS Viscosity @ - 30 C, cP 6300

Borderline Pumping Viscosity @ - 35 C, cP 17. 300

High Temp. High Shear Viscosity @ 150 C, cP 3. 9

Pour Point, deg. C -39

Sulfated Ash, % 1. 6

Total Base Number (D-2896) 12

Foam / Aeration Tests Pass



over



Shell ROTELLA® T http://www.rotella.com/products/index.php



THeir spec sheet... .



Typical Properties of Shell Rotella® T Synthetic

Test SAE Grade

Method 5W-40

Product Code 54300

Viscosity:

@ -30°C, cP D 5293 6400

@ 40°C, cSt D 445 90

@ 100°C, cSt D 445 15. 0

Viscosity Index D 2270 176

Flash Point, °C D 92 222

Pour Point, °C D 97 -40

Low temperature cranking viscosity

cP @ -30°C

D 5293

6400

Low Temperature Pumping viscosity,

cP @ -35°C

D 4684

39,000

Neutralization No. TBN-E D 2896 11. 5

Sulfated ash, wt% D 874 1. 47

Handling

 

[dodge cummins]

if you want to use a full synthetic use mobil 1 5w40 truck and suv formula. i have been running it in my 96 for 15000 miles now and it hasn't burned a quart yet. it is the same exact formula as delvac 1 but it is packaged for the average consumer. you can get it at your local walmart. you can run it all year long also. if you want specs give me your email and i will send it to you. it is clearly the best synthetic on the market.

 

[PRyker]

it is clearly the best synthetic on the market.

WOW... talk about starting an oil brand war...



I would argue that Amsoil 15W40 HD Diesel and Marine oil is better in climates where you do not need to go to a thinner oil in winter, but... the truth is it is all probably plenty of protection for our trucks. I think you would be fine with any diesel motor oil with the proper rating for our trucks. Someone else can chime in and provide the proper CH-whatever number that people need to make sure they are using.



Here is the spec for Amsoil 15 W 40 HD Diesel and Marine:



API CI-4+, CH-4, CF, CF-2, SL

Global DHD-1

ACEA A3, B3, E3, E5

Mack EO-M+, EO-N Premium Plus 03

DDC Power Guard 93K214

Caterpillar ECF-1

Cummins CES 20071, 20072, 20076, 20077, 20078

Volvo VDS2, VDS3

MB 228. 1, 228. 3, 229. 5

MAN 271, 3275

MIL-PRF-2104



Kinematic Viscosity @ 100°C, cSt (ASTM D-445) 15. 5

Kinematic Viscosity @ 40°C, cSt (ASTM D-445) 100. 2

Viscosity Index (ASTM D-2270) 164

CCS Viscosity @ -20°C, cP (ASTM D 2602) 3600

Pour Point °C (°F) (ASTM D 97) -44 (-47)

Flash Point °C (°F) (ASTM D 92) 234 (453)

Four Ball Wear Test (ASTM D-4172 B: 40 kg, 75°C, 1200 rpm, 1 hour, Scar in mm) 0. 35

Noack Volatility, % weight loss (g/100g) (ASTM D-5800) 6. 7 High Temperature/High Shear Viscosity cP, 150°C, 1. 0 X 106 s. -1, (ASTM D 4683),

> 4. 1

Total Base Number >12. 0