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'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

Thread: Rotella Motor Oil Reply to Thread
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  Topic Review (Newest First)
02-22-2019 06:12 PM
ArcticDriver
Quote:
Originally Posted by DauphineeLandscaping View Post
I have run Rotella in my truck all its life. I have 403,000 miles and it has original turbo, original injectors, and original HPOP. I think that speaks for itself.
That is really great.

How often do you change your Rotella and which viscosity?

Thanks
02-22-2019 06:07 PM
DDauphinee7.3 I have run Rotella in my truck all its life. I have 403,000 miles and it has original turbo, original injectors, and original HPOP. I think that speaks for itself.
01-10-2019 11:44 AM
BS Hauler That is the stupidest thing I have ever heard. If switching back to a dino oil after using a syn oil would spin bearings. Do you know what kind of lawsuits there would be.
01-05-2019 02:11 AM
Big Horn Hello everyone, Just an update from my original post: I ended up buying and switching over to Rotella T6. I have drove it long enough now to get a feel for how the 7.3L runs with it, starts easy, motor isn’t any louder than with the previous conventional oil, and no oil consumption or leaks.

I bought the 2.5 gallon jugs (4) that Tractor Supply had a good sale on and just received my $70.00 rebate in the mail from Shell.
10-11-2018 07:24 PM
klhansen
Quote:
Originally Posted by RT View Post
Since Amazon is taking over the world, might as well switch to this now- http://a.co/d/cqwUj8e
I'm not likely to start using "Amazon" oil (they probably refuse to ship it to me anyway - at any price), so they're not taking over MY world. I get my DELO 400 (non-synthetic) from the local distributor, or from Costco.


BTW, synthetic oils date back to before WW2 when Germany developed the Fischer-Tropsch process - making oil from Carbon Monoxide and Hydrogen gas.
10-11-2018 06:43 PM
ArcticDriver
Quote:
Originally Posted by MrTommy View Post
Tribologist. That's a new one for me, so I looked it up.

"The science of the mechanisms of friction, lubrication, and wear of interacting surfaces that are in relative motion."

Now I'm ready for the next backyard barbecue when the conversation sags . . . [IMG class=inlineimg]https://www.thedieselstop.com/forums/images/smilies/bigthumb.gif[/IMG]
Oh yeah, thats sure to get the party started.
10-11-2018 09:23 AM
MrTommy Tribologist. That's a new one for me, so I looked it up.

"The science of the mechanisms of friction, lubrication, and wear of interacting surfaces that are in relative motion."

Now I'm ready for the next backyard barbecue when the conversation sags . . .
10-10-2018 05:51 PM
RT Since Amazon is taking over the world, might as well switch to this now- http://a.co/d/cqwUj8e


Sent from my iPad using Tapatalk
10-10-2018 01:48 PM
DonWarkentin
Quote:
Originally Posted by 79jasper View Post
If a injector builder explicitly states to avoid a certain oil, I'm inclined to believe it's for very good reason.

Sent from my SAMSUNG-SM-G930A using Tapatalk
Not to worry. Warren Diesel Injection only makes injectors for the 6.0 and 6.4. This warning doesn't even apply at all for the 7.3L.

https://www.warrendiesel.com/collections/fuel-injectors
10-10-2018 11:16 AM
DENNY 79jasper
Could it be because they do not have the knowledge to build a proper injector that can handle the oil a stock injector can? Just poking a stick at the fireOver the years I have run several brands and types of oil. The 7.3 can be sensitive to oil weight and type. The only oil I have had foam on me after 4,000mi was Motorcraft oil. The same truck ran AMSOIL for 20,000 miles (extended drain with bypass filter) and several other oils with no problems. I had a early 7.3 that would start fine but not run well until until warm (symptoms occurred 30 degrees and colder), problem solved with changing to a lighter weight oil. I am currently running the blue stuff in my 7.3 , my 12 valve Cummins, Bobcat, ATV's and lawn mower. BMW and honda generator get mobil 1 0w40. I try to keep it down to only one or two types of oil with that many engines (also have two planes to maintain but that is another forum). I was looking at going to the T6 this year because of price but found a OK deal on the blue stuff.

When it comes to oil I would have to agree with ARTIC most properly rated should do the job. The 7.3 has always been a oil sensitive engine from the start. Lots of foaming issues back in the day, I would not be surprised to hear a rebuilt/modded injector would have issues also. So pick a oil for whatever reason, (friends advice, forum hype, brand loyal, price, whatever.) and give it a try. If the truck is not happy with it then treat it like a bad bottle of beer and get another brand.
DENNY
10-10-2018 07:31 AM
79jasper If a injector builder explicitly states to avoid a certain oil, I'm inclined to believe it's for very good reason.

Sent from my SAMSUNG-SM-G930A using Tapatalk
10-10-2018 06:41 AM
ArcticDriver
Quote:
Originally Posted by Big Horn View Post
Is anyone using the Harvest King motor oil sold at Rural King? On a search (another site) a thread came up that the user called Blacstone and talked to a tech who said the Harvest King was as good as any other diesel oil if scheduled maintenance (oil changes) is performed.
Harvest King is considered a decent oil for the price point but its a discount oil and not like a M1 product with exceptional additive package. I would not run extended OCI with this. Its one of those no frills lubricants you find at Ag Supply stores and is geared towards farmers who don’t want to pay more for a pretty blue bottle.

An even better manufacturer of Ag lubricants is the Mystik Product line...I think they are both Citgo products.
10-08-2018 06:18 PM
79jasper
Quote:
Originally Posted by Calico5 View Post
LOL, Really? I don't think so...
Probably not you........

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10-08-2018 04:47 PM
Calico5
Quote:
Originally Posted by 79jasper View Post
Lol you have more research to do.
LOL, Really? I don't think so...

Which part? Making oil or recycling it? Perhaps a little elaboration on your part.

Unless we have come up with another source of hydrocarbons as rich as crude oil (and/or natural gas)...

"Synthetic" oil is a "man-made" material (hence the term "synthetic"), but since it is nothing but a complex hydrocarbon compound, and oil is still one of the richest sources of hydrocarbons. Crude is still the primary starting-source for synthetic base stocks. Yes, they are now converting natural gas into a super-pure oil base stock. But the process is still in its infancy and is VERY expensive. But it holds promise as the future of synthetic oil and fuels. However, natural gas is/was largely a by-product of oil production (they used to throw it away), but now it is captured and processed. More profit to be made...
10-08-2018 02:14 PM
79jasper Lol you have more research to do.

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