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Opti-lube seems to be the way to go, depending on who you talk to. But their lack of retail presence makes it difficult to pick up a bottle/jug. Where are you guys buying Opti-lube?
I remember a time here not long ago when Opti Lube was poo pooed here like K100 was because of the alcohol content. People quote the owner's manual but those manuals have been saying the same thing from the 7.3 days; not to use an alcohol based additive. IMO, they were talking about the emergency use de-icer additives that can contained bad alcohol like isopropyl alcohol which would have a detrimental effect on the fuel pumps when it came to lubrication. Mind you, I'm no expert here and offer this only as an opinion. Additives like OptiLube and K100 have alcohol compounds in them but also have added lubrication components as well.
Four of those 26 are alcohols. But they do list an ester component at 5% which I would assume is one of their lubricity components. There's also two acids listed as components. After looking into lubricity additives, there's two types; acidic and non- acidic. I don't know what the acid does in this. I believe K100D+ has an acid listed on their SDS sheet. But I do know esters are used for lubricity, hence the non-acidic lubricity component.
Their XL Xtreme lubricant additive (PURPLE) has 17 components listed with the ester component being 40% of the mixture would explain the good lubricity value from this additive. There is also one alcohol listed here in it as well. https://files.elfsightcdn.com/70911b...41d435df99.pdf
Optilube has this on their website. Where's the lab reports that backs this up and shows us how they got to their conclusions?
Diesel fuel and other fluids are tested for lubricating ability using a device called a “High Frequency Reciprocating Rig” or HFRR. The HFRR is currently the Internationally accepted, standardized method to evaluate fluids for lubricating ability. It uses a ball bearing that reciprocates or moves back and forth on a metal surface at a very high frequency for a duration of 90 minutes. The machine does this while the ball bearing and metal surface are immersed in the test fluid (in this case, treated diesel fuel). At the end of the test the ball bearing is examined under a microscope and the “wear scar” on the ball bearing is measured in microns. The larger the wear scar, the poorer the lubricating ability of the fluid. The independent lab runs every sample twice and averages the size of the wear scar.
HFRR Standards:
The U.S. standard for diesel fuel says a commercially available diesel fuel should produce a wear scar of no greater than 520 microns.
The Engine Manufacturers Association had requested a standard of a wear scar no greater than 460 microns, typical of the pre-ULSD fuels. Most experts agree that a 520 micron standard is adequate, but also that the lower the wear scar the better.
In the following comparison chart you will see how PlanetSafe-FT and PlanetSafe-DT compare with popular additives on the market.
That old Spicer study where they placed their own testing results. I thought when I looked at this site for the first time, it had the lab reports listed. So I sent them an email and asked for the lab reports to show the data.
As for me, that's why I want to add a fraction of what is needed of LX4 to add some more lubricity to already good lubricating additive in my eyes.
I mixed a equal small amount of K100D and the LX4 and it mixed completely. No water and oil effect whatsoever. I'll post up in my truck thread when I figure it out, take it or leave it.
I've had great luck with the Hot Shots EDT and LX4 in my 2020 with the S&B 60g tank. I mix 3oz of each into a bottle. If tank is 1/2 full it gets half otherwise I pour all 6oz in. In ECO mode cruise at 65-70 I was avg 22-25 mpg. I watch the fuel usage history graph in the truck. I also try and fill up at truck stops or high volume stations. Im very happy with the fuel usage for an F350. I think the additives make a big difference.
I've had great luck with the Hot Shots EDT and LX4 in my 2020 with the S&B 60g tank. I mix 3oz of each into a bottle. If tank is 1/2 full it gets half otherwise I pour all 6oz in. In ECO mode cruise at 65-70 I was avg 22-25 mpg. I watch the fuel usage history graph in the truck. I also try and fill up at truck stops or high volume stations. Im very happy with the fuel usage for an F350. I think the additives make a big difference.
Appreciate your input.
Those 4 extra gears in the new and improved trans really helps you late model guys out for increased fuel economy.
The motorcraft additive only boosts cetane a couple points. Most truck stop fuel is at or around 40 cetane. It's the lowest quality crappy fuel we can purchase in the US, except for California where there are higher standards.
Your best bet is to run a bio-diesel blend which has way more lube value than any additive on the market then add a cetane booster to up the cetane to a decent number for a cleaner combustion cycle.
...Most truck stop fuel is at or around 40 cetane.....
That would be very location specific. In Texas, most of the state is regulated by the Low Emission Diesel program. To wit: TxLED must contain no more than 10 percent aromatic hydrocarbons by volume and must have a cetane number of 48 or greater, or else must use an approved alternative formulation or comply with the designated alternative limits.
Regardless of what tank it's going into (car, truck, OTR truck) or what kind of station it is (neighborhood or highway truck stop station), it must meet those minimum specifications.
I don't know, but I'm sure Texas is not unique in setting minimum standards.
So if I understand correctly, if I run the B5 at RaceTrac, I wouldn’t need the motorcraft cetane boost because I’m getting more benefit from the b5 than I could get from the cetane boost.
That would be very location specific. In Texas, most of the state is regulated by the Low Emission Diesel program. To wit: TxLED must contain no more than 10 percent aromatic hydrocarbons by volume and must have a cetane number of 48 or greater, or else must use an approved alternative formulation or comply with the designated alternative limits.
Regardless of what tank it's going into (car, truck, OTR truck) or what kind of station it is (neighborhood or highway truck stop station), it must meet those minimum specifications.
I don't know, but I'm sure Texas is not unique in setting minimum standards.
Your right Texas does have a higher standard for higher cetane rating.
The EPA has a minimum requirement of 40 nationwide after that it's left up to each individual state.
So if I understand correctly, if I run the B5 at RaceTrac, I wouldn’t need the motorcraft cetane boost because I’m getting more benefit from the b5 than I could get from the cetane boost.
No, it's the other way around. With the B5 you get the lubricity but would still need to add the cetane.
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