Regular Diesel as Break-In, then B2 or B5 forever?

[ktm3ten]

Would it make sense to use regular pump diesel with no additives during the first 1000-5000 miles, then (since everyone (and the Spicer Report) seems to agree that B2 and B5 are vastly superior to almost every additive for lubricity), forever? What are everyone's thoughts on this? Would this solve the need for regular use of additives and provide better protection for the HPFP? Thoughts?

 

[pleopard]

That's counterintuitive... If anything it would make more sense to run high lubricity fuel from the very beginning, and especially at the very beginning, during break-in.

 

[Biffster]

Bosch whitepapers state emphatically that high-lubricity fuel should be used at the EARLIEST time possible -- specifically the very first tank.

As Pleo stated...

 

[Fixmy59bug]

I would use some percentage of Biodiesel from the start AND forever.

B2 at a minimum, preferably B5 in my opinion.

 

[ktm3ten]

I guess I thought during a "break-in" period, the goal was accelerated wear. Hence the very light oil that comes in engines as "break-in oil." Then, once this accelerated wear has established, a heavier, more protective lubricant (in this case B2 or B5) serves to slow that wear. Without the initial wear period, could damage be done? Improper development of fuel pressures? Educate me, please!!

 

[Joe_Meehan]

use regular pump diesel with no additives

I doubt if you can buy diesel from a pump without additives. It may not be the most desired mix, but unless you have a source of bunker oil, it has a good basic additive package.

 

[tdiatlast]

I guess I thought during a "break-in" period, the goal was accelerated wear. Hence the very light oil that comes in engines as "break-in oil." Then, once this accelerated wear has established, a heavier, more protective lubricant (in this case B2 or B5) serves to slow that wear. Without the initial wear period, could damage be done? Improper development of fuel pressures? Educate me, please!!

You're confusing oil-related break-in to (non-existing) fuel-related break-in.

You definately do NOT want your fuel system parts to have ANY wear! ANY wear in a fuel system is called failure!

Consider yourself educated!!...well, a little bit...(I've taught my son everything I know...and he's STILL stupid!)

Do some more searching here re: petro additives vs. bio. I prefer the petro route (OptiLube XPD), as I can control the amount of additive. (Of course, I can't control what additives are already at the fuel station pump.) Besides, my only available bio is at the Pentagon, it's 5-20% bio, and it's $4.20

 

[Powder Hound]

I guess I thought during a "break-in" period, the goal was accelerated wear. ...

This is a valid concept, but it only applies to the piston rings, and even then for only a relatively short period of time.

 

[tditom]

... ANY wear in a fuel system is called failure!...

Overstated just a bit.
Wear is a fact of life. Fuel lubricity is measured by wear. Anything less than 400 micron wear is considered meeting design target for diesel fuel injection systems.

I do agree that minimizing wear is very important for maximizing the life of the FI system, and "breaking in" is a concept unique to the engine.