Quote:
Originally Posted by Father Of Giants
So the technical article basically said that diesel fuel already has decent lubricity. welp I guess facts don't care about our feelings.
I also like how the article says in the most polite manner that many additives are potentially snake oil. - A large number of aftermarket additive products are available to meet these real or perceived needs. Some are aggressively marketed with testimonials and bold performance
claims that seem “too good to be true.” As with any purchase, it is wise to remember the
advice, caveat emptor, “let the buyer beware" 
Even Chevron admits that nobody is really testing the effectiveness of all the additives out there. |
Yes.....
My friend who has worked at Bosch since 1968 says, "Use any top tier diesel fuel and you should be fine." He says Bosch tests diesel fuel from different stations and there is a difference....stick with top tier such as Philips, Exxon/Mobil, Conoco, Shell, Sunoco, etc.
I think the only MB approved fuel additive is Biopor for Algae/microbial control. He said Bosch and MB do not recommend adding anything else to the fuel tank.
The reasoning is that if you are using top tier fuels, they will be properly refined with necessary additives and ready for use. Adding any other additives just isn't necessary.
Diesel engines are robust by nature so additives added by the operator probably do not hurt but they really do not enhance the fuel in any meaningful way.
In short, save your money. Put it into buying the best quality parts for your next repair.
__________________
-- Chris
'95 E300, 216k miles, Silver Surfer
'05 E320 CDI, 138k miles
'07 S550 4matic, 69k miles
Gone but not forgotten:
'76 300D, 350k miles?, SOLD in 1995
'75 240D, 300k miles, SOLD in 1991