5W-40 Really does work like you all say!
Postmaster
Joined: Dec 2008
Posts: 3,340
Likes: 2
re
On a cold start some people get an idle up and down and may even die. Some of the 15w40 is like molasses when cold. So the 5w40 synthetic is going to give better flow during a cold start.
Senior User
Joined: Nov 2007
Posts: 103
Likes: 0
From: Coon Rapids MN
so shaffers 9000 is good but this rotela 5-40, has anyone checked metals/sample to see if during warmer weather it still protects well?during winter i would for sure use it.
solid evedence on how they treat our engines in warmer weather would change my mind i think. id rather thicker oil maybe a search would yeild older tests, but a new fully synthetic super oil would be cool.
solid evedence on how they treat our engines in warmer weather would change my mind i think. id rather thicker oil maybe a search would yeild older tests, but a new fully synthetic super oil would be cool.
Smokin
Joined: Jun 2006
Posts: 8,849
Likes: 0
this is an especially bad case of the romps. On a healthy truck at cold startup, with conventional oil, you only get a few romps, 2 or 3, maybe 4, and the idle will smooth out.
Cargo Master
Joined: Jun 2003
Posts: 3,292
Likes: 6
From: Ardenvoir, Washington
Liquivac
It great for marine engines and lawn movers too..
Posting Guru
Joined: Jul 2006
Posts: 1,720
Likes: 1
[quote=Smokin';7000820]This is romps: YouTube - Powerstroke 7.3 Cold start #2
quote]
That is exactly what my 7.3 sounded like on a 25 F day with rotella dino oil. I changed to 5w40 Rotella full syn,, and never heard it again.
quote]
That is exactly what my 7.3 sounded like on a 25 F day with rotella dino oil. I changed to 5w40 Rotella full syn,, and never heard it again.
Mountain Pass
Joined: Aug 2008
Posts: 249
Likes: 1
From: Middletown, PA
This is romps: YouTube - Powerstroke 7.3 Cold start #2
this is an especially bad case of the romps. On a healthy truck at cold startup, with conventional oil, you only get a few romps, 2 or 3, maybe 4, and the idle will smooth out.
this is an especially bad case of the romps. On a healthy truck at cold startup, with conventional oil, you only get a few romps, 2 or 3, maybe 4, and the idle will smooth out.
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Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
It CAN'T be good!! If you ever put a sample of 5-40 syn & 15-40 dino in the freezer or outside, if it's cold where you're at, you see why it does that. Like pumping cold molasses though the engine. I switched after my first OC, and won't ever go back.
I priced RP 15W-40 syn today at O'Reilly's, and DAYAM, they're PROUD of that stuff!! Like $32/gal!! Wow!!!
I priced RP 15W-40 syn today at O'Reilly's, and DAYAM, they're PROUD of that stuff!! Like $32/gal!! Wow!!!
Cargo Master
Joined: Jan 2001
Posts: 2,726
Likes: 5
From: Slatington, PA
Rotella is finally going back down in price too. Wally world sells it for 19.99 and autozone for a penny more.
It definately makes a difference in starting. Mine fired up right away on new years morning. It was 15 degrees, not plugged in, and all I did was wait for the WTS light to go out. She did make a bit of smoke but only for a minute or so. Schaffers 9000 is going in once I run out of the Rotella I have stocked up.
It definately makes a difference in starting. Mine fired up right away on new years morning. It was 15 degrees, not plugged in, and all I did was wait for the WTS light to go out. She did make a bit of smoke but only for a minute or so. Schaffers 9000 is going in once I run out of the Rotella I have stocked up.
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