Best 10W-40 available?

[MustangGT]

I know there aren't many fans here of 10W-40 but I was wondering is there a conventional (or high mileage) 10W-40 that is better than the rest?

Thanks

 

[sgtgeek]

Lot of variables there in that question friend....what are your mods...I assume you have a Mustang GT...what are your driving habits...where do you live...North Pole...Sahara...etc.....me I'm in South Texas...Drive an 04 GTO highly modified and use Amsoil 10-40......Mobil 1 Euro 0w40 is also great stuff.....Of course it all depends on your oil change intervals...your engine/mods....why are you so set on 10-40 anyway?

 

[Jelly]

Mobil Drive Clean Plus 10W-40: http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil_Drive_Clean_Plus.asp

 

[2004 F150 4x4]

Pennzoil 10w40 conventional. I used it for years in the winter and 20w-50 in the summer.
Zero engine problems.

 

[brian fix]

Mystik JT-8 makes a excellent 10w-40,I think they still make it and is deisel approved..BL

 

[TallPaul]

Tough time to be asking because of the switchover from SL to SM. If it were SL I would say Valvoline Durablend and/or Maxlife are very good products. If you wanted a heavy duty additive level, Citgo Ultralife (high mileage) would be good. I just don't know about the SM oils. Lot of other good 10w40s out there. One of the very best might be Redline at $8 per quart.

 

[Audi Junkie]

MaxLife and Durablend are great products, DB was even A3-rated for a while. I am eyeing Castrol GTX 10w-40 though because I don't want any ester content. Why not consider a 15w40? Delvac 1300S supposedly pumps like a 10w.

 

[427Z06]

Mobil Delvac 1300S 15w40: MRV, cP, ASTM D 4684 29,000 @ -25°C

Darn close to the 10w limit.

 

[weatherdude]

quote:

---

Originally posted by brian fix:
Mystik JT-8 makes a excellent 10w-40,I think they still make it and is deisel approved..BL

---

They still make JT-8 10w40. Here's the specs.

code:

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SAE VISCOSITY GRADE

10W40



Gravity, ASTM D 4052

at 60°F

28.9



Pounds/Gallon at 60°F

7.3



Specific Gravity at 60°F

0.881



Viscosity at 100°C, cSt

15.5



Viscosity at 40°C, cSt

99



Viscosity Index

153



CCS Viscosity, cP,

at Temperature

6500 @-25°C



MRV Viscosity, cP,

at Temperature

19,900 @ -30°C



MRV Yield Stress, Pa,

at Temperature




Pour Point, °F (°C)

-27 (-33)



Flash Point, COC, °F (°C)

410(210)



Noack Evaporative,

ASTM D 5800, % Loss

15



Color, ASTM D 1500

3.5



Total Base Number,

ASTM D 2896

11



Sulfated Ash,

ASTM D 874, % wt

1.3

---

 

[Dominic]

Ive had great luck with my lowcost 10W-40 Maxlife.

 

[Motorbike]

There are some real Syn Blend 10w-40's in the USA that meet :

API SJ/CF, ACEA A3/B3/B4, MB 229.1, BMW, Porsche, VW 500.00/505.00

These would be AGIP , Elf , Motul and Lubromoly but they set you back in price because of shipping .

 

[MustangGT]

I went with the Delo 400 15w40 , the new formulation looks really good (Virgin sample section), lots of Moly and only $6.00 a gallon at Walmart, figured it was worth a try.