What are you talking about? The lubricity of diesel fuel has nothing to do with DEF. DEF doesn't go into your fuel system at any point... It's injected into the exhaust downstream of the DPF before the NOx cat. Is this your first diesel? lol. Completely separate systems and issues easily solved with a) Using API certified DEF, and b) adding a lubricity additive to your fuel.Is this the first diesel for most of you all? Might want to ask your local diesel mechanics and service advisors about blue def and the regen system in Ford trucks many have had to be replaced bevause of it and the lubrication in usa diesel is not enough for our euro designed engines which is why many 5-8 thousand dollar fuel systems have to get replaced at 100 thousand miles or so
There is still quite a bit wrong with what you're saying here. The BLUE def is API certified, and meets the exact same specs as motorcraft. No one should be afraid to run this. maybe your buddy poured it into his diesel tank.LOL yes I know the diesel fuel and def are different issues, The blue DEF (peak I think) has destroyed many a Ford Power Stroke DEF system and I have a friend who just had to replace his entire fuel system from a fuel pump that went out. That repair alone was 8 grand thinking it would be somewhere around 6 grand for our trucks. He now uses Opti lube XPD in his truck and I bought something called Standyne. Just want the piece of mind that comes from using products designed for and to protect those costly systems.
He said the diesel mechanic told him that modern USA diesel fuels do not have the lubrication in them like euro market diesel and it will cause the fuel pumps to fail over time. It will dry them out and cause them to basically disintegrate in the tank thus leading to the entire fuel system to be replaced all lines, injectors, etc. You might have a different experience but this is what some of the diesel people have been telling me.
There is still quite a bit wrong with what you're saying here. The BLUE def is API certified, and meets the exact same specs as motorcraft. No one should be afraid to run this. maybe your buddy poured it into his diesel tank.
As for the diesel fuel, the EU has mandated ULSD since 1999, and the US since 2006. The hydrotreatment of diesel fuel to remove Sulphur does remove lubricity components of the fuel, so this is nothing new, and is why biofuel is commonly used to replace the lubricity in the fuel, which is the case for "European diesel". Since this is not mandated in US diesel, it is a good idea to use a lubricity additive to ensure the pump is protected.
As for the pump now, The pump in your tank is a lift pump and you don't need to worry about it, if this "disintegrates, there are 2 filters before it can get to anything critical, I have not heard of any issues with these. What you need to worry about is the High Pressure fuel pump, as this is behind the filters on the engine. The fuel doesn't "dry it out" as you've stated, it's a metal piston in a metal cylinder that relies on the fuel for lubrication. Inadequate lubricity can lead to scuffing and eventual failure, which will send metal shrapnel to your injectors and destroy them, so again a lubricity agent is a good idea here for peace of mind.
Standyne is supposed to be ford approved and will not void the warrantyWhat Laytunes is describing above just happened to my boss's truck. He had a 2015 2500HD Denali with just over 100k miles on it and the high pressure fuel pump grenaded! Sent metal fragments all through the fuel system. Basically had to trade it in and take the hit because the repair estimate was between $10k to $12k! Guess I will start adding the XPD in my tank. I know some trucks I have read it is bad for? Specially read something on the 6.7 Cummins where it was explained why not to use it. If it's all good on these 3.0 motors though I"ve always been a fan of it. Carry on.. : )