| Author |
Message |
Doyle Gaither (Texasborderdude)
Registered Member
Username: Texasborderdude
Post Number: 4
Registered: 3-2007
Posted From: 24.92.121.67
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, March 02, 2007 - 8:19 pm: | |
This 8v71 newbie has been told that 5w-40 Synthetic will increase mpg by up to 20%... what are the ups and downs? Thanks to all... |
Bob greenwood (Bob_greenwood)
Registered Member
Username: Bob_greenwood
Post Number: 756
Registered: 7-2006
Posted From: 64.136.49.228
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, March 02, 2007 - 8:46 pm: | |
VERY expencive..somebody is B/S ing you..the 871 needs 40 wt..most use DELO... I use Rotella T |
norcal kyle (Kylexisxrad)
Registered Member
Username: Kylexisxrad
Post Number: 126
Registered: 12-2005
Posted From: 24.23.29.217
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, March 02, 2007 - 8:58 pm: | |
me too. i took my bus to the DD dealer for a lube and they filled my 6v92TA w/ straight 40 wt Rotella T. the only synthetic they used was Transynd in my HT-740. if the Detroit dealer doesnt use it, i wouldnt. FWIW....
kyle in norcal |
Leslie Robinson (Lesrmc9)
Registered Member
Username: Lesrmc9
Post Number: 61
Registered: 10-2004
Posted From: 205.250.196.29
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, March 02, 2007 - 10:43 pm: | |
USE ONLY 40 WT CF-2 in a 2 stroke detroit maybe 30 wt in real cold weather period end of statement
but
use synthetic in tranny and diff |
joe padberg (Joemc7ab)
Registered Member
Username: Joemc7ab
Post Number: 90
Registered: 6-2004
Posted From: 66.38.159.33
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, March 03, 2007 - 1:08 am: | |
Doyle
I know of a case where 0/50 synthetic was used in a 8v71 and he got all of 2 blocks when the engine seized. The answer is NEVER!.
Joe. |
John Feld (Wvobus)
Registered Member
Username: Wvobus
Post Number: 14
Registered: 2-2005
Posted From: 150.199.209.3
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, March 03, 2007 - 1:44 pm: | |
Whats wong with useing real oil?
Do you eat synthetic food?A synthetic is almost as good but not real! |
Gus Causbie (Gusc)
Registered Member
Username: Gusc
Post Number: 309
Registered: 11-2005
Posted From: 63.97.117.23
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, March 05, 2007 - 11:42 pm: | |
Doyle,
What all these posts mean is never use multi-grade in a DD. Also, use only CF-2 rated oil (This is written on the rear of the label) Most will say CF-4 which is for most other diesels except 2-Stroke DDs. |
Doyle Gaither (Texasborderdude)
Registered Member
Username: Texasborderdude
Post Number: 18
Registered: 3-2007
Posted From: 70.245.126.180
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, March 14, 2007 - 6:23 pm: | |
Seems like the CF-2 40wt is very much a vainishing breed; but for anyone traveling along IH10 through El Paso, Canyon State Oil is the jobber and they'll fix you up with Rotella T 40 wt. in a 5 gal pail for $51.29+tax. Easy on and off but check your gps. Call Benjamin at (915) 775-3525. |
Jim Rink (Fakeguy)
Registered Member
Username: Fakeguy
Post Number: 21
Registered: 1-2005
Posted From: 24.33.85.105
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, March 16, 2007 - 10:25 pm: | |
anybody use straight 30 w in 8v71 or is it just me? use in engine and 4 spd oem manual trans per manual...live in cincinnati, and do most driving in warm weather in ohio, ky and indiana..all advice and comments welcomed |