adding a 2nd block heater?
Post Fiend
Joined: Sep 2006
Posts: 7,426
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From: Sioux Falls, SD
Shell Rotella T-6 5W-40
Shell Rotella® Products - Shell Rotella
Here are two others that have show excellent results in the 7.3L on Used Oil Analysis Reports.
Schaeffer's 5W-40 series 9000 synthetic diesel oil
Schaeffer Oil | Supreme 9000 Full Synthetic Heavy Duty Engine Oil
Chevron Delo 400 5W-40 Diesel oil
http://www.deloperformance.com/docs/...ell_041310.pdf
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Senior User
Joined: May 2011
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Shell Rotella T-6 5W-40
Shell Rotella® Products - Shell Rotella
Shell Rotella® Products - Shell Rotella
I also added a bottle of Power Service Diesel Fuel Supplement. The stores here carry White, Grey and Red(Emergency) bottles. I've been using the White bottles because it says it prevents fuel gelling in cold weather.
Post Fiend
Joined: Jan 2000
Posts: 5,330
Likes: 17
From: Dryden, ON, Canada
Since Esso and Mobil combined their lines this side of the border, my old XD3 0W40 has turned into Mobil Delvac 1 ESP 0W40... I run it year round in everything, it plain old kicks *** and those crazy people that have nothing better to do than post about oil in forums seem to love the stuff.
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Senior User
Joined: May 2011
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Since Esso and Mobil combined their lines this side of the border, my old XD3 0W40 has turned into Mobil Delvac 1 ESP 0W40... I run it year round in everything, it plain old kicks *** and those crazy people that have nothing better to do than post about oil in forums seem to love the stuff.
I put Shell Rotella 0w40 in last night. -3 celcius and 3 inches of snow on the truck, started right up.
Posting Guru
Joined: Jan 2008
Posts: 2,408
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From: Trenton, MI
Did you notice any difference with that 0w40? Spin quicker and quiet?
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Cargo Master
Joined: Oct 2008
Posts: 3,330
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From: Eaton, CO
My '86 6.9L starts better than my PSD in cold weather. If I run fully synthetic oil in the PSD, it will start as well as the old IDI, but will puke fuel out of the fuel bowl. It doesn't matter what's in the IDI. The thing is a friggin' furnace. Lol.
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