Best Engine Oil for 02 7.3L
#46
01-13-2010, 06:37 AM
Nice report Chris. Especially with the miles you've racked up! I only have half the miles you show on the report. Isn't the Delo 400 in the left column though? I only noticed because I have had similarly strong Blackstone OA's on Delo 400 and noticed the strong additive presence. Particularly molybdenum and the boron. Always far above the universal averages.
#47
01-13-2010, 06:44 AM
Join Date: Oct 2009
Posts: 47
Likes: 0
Received 0 Likes
on
0 Posts
#48
01-13-2010, 07:54 AM
Hope that makes sense.
#49
01-13-2010, 09:22 AM
Join Date: Oct 2009
Posts: 47
Likes: 0
Received 0 Likes
on
0 Posts
#50
01-13-2010, 09:47 AM
Cargo Master
#51
01-13-2010, 10:21 AM
Post Fiend
What mods have you done?
If your are not running a dual HPOP or High ICP programs then shearing is probably not a concern in your situation.
#52
01-13-2010, 10:32 AM
Join Date: Oct 2009
Posts: 47
Likes: 0
Received 0 Likes
on
0 Posts
#54
01-13-2010, 11:19 AM
Post Fiend
I would say 4-5,000 mile oil change intervals. I wouldn't recommend going over 5K without doing a used oil analysis report (some labs - Polaris $15, Schaeffer's $11, OAI $22, Blackstone $22).
Mobil Delvac 5W-40 has a good score on the Cold Cranking Viscosity test of 3200 at -25 deg Celcius. So if you live in a cold climate you will see good cold start characteristics.
#55
01-13-2010, 11:25 AM
Post Fiend
#56
01-13-2010, 11:30 AM
Cargo Master
#57
01-13-2010, 11:34 AM
Post Fiend
So far it's been the opposite for me. I've found that when I do run 15w-40 oil, it shears faster than 5w-40. I've run Motorcraft, Delo, and Rotella dino 15w-40, and they can't make it much further than 3000 miles with dual HPOP's on my truck. That's why I typically run synthetics. They've all tended to resist sheering more.
5000 miles on a 15w-40 oil turns to the consistency of water. Synthetics will go about 8000 miles before reaching that point. However, I don't like running that many miles on those oils. I like to change them before they get to that point.
5000 miles on a 15w-40 oil turns to the consistency of water. Synthetics will go about 8000 miles before reaching that point. However, I don't like running that many miles on those oils. I like to change them before they get to that point.
Probably need to start a new thread......
#58
01-13-2010, 11:37 AM
Post Fiend
#59
01-13-2010, 11:39 AM
To know for sure you need to have a couple oil analysis done. But if you're still talking about that 5W-30 you have in there, you really should dump it and get some of the other oils talked about in here. I go somewhere between 6000-7000 miles when I'm using synthetic.
