[martyb]

OK, I was a Ford guy and everybody used Stanadyne or Power Service additives. Over here all you guys talk about Primrose and Fppf. What is the difference????

 

[Rookiew/Dmax]

Do a search on both of those products, you will find a wealth of knowledge on both products, as well as info on how each works in your fuel system.

 

[JohnnyO]

If you liked the way Stanadyne worked in your Ford, continue to use it in your GMC. Stanadyne and Racor additives were recommended by GM.


I am using the Stanadyne. Seems to work.

 

[JohnnyO]

It looks like you get what you pay for... Not much in Power Service:


STANADYNE PERFORMANCE FORMULA:
Ingredient Name: 1-(2-HYDROXYETHYL)-2-(TALL OIL ALKYL)-2-IMIDAZOLINE; 1-(2-HYDROXYETHYL)-2-ALKYL (C-18)-2-IMIDAZOLINE
0.8-1.5%
Ingredient Name: 2-BUTOXYETHANOL (ETHYLENE GLYCOL MONOBUTYL ETHER), BUTYL CELLOSOLVE, BUTYL GLYCOL, GLYCOL ETHER EB
5-15 %

Ingredient Name: 2-ETHYLHEXYL NITRATE *94-4*
20-35%

Ingredient Name: ETHYL BENZENE *94-4*
0.75-3%

Ingredient Name: NAPHTHA (PETROLEUM) *94-4*
41-70%

Ingredient Name: NAPTHALENE; MOTH FLAKES; MOTH BALLS; NAPHTHALIN; CAMPHOR TAR; WHITE TAR
15-1.5%

Ingredient Name: XYLENE, DIMETHYLBENZENE, XYLOL
0.75-3%
===========================================
<H1 style="MARGIN: 0in 0in 0pt">POWER SERVICE DIESEL FUEL SUPPLEMENT</H1>
<H1 style="MARGIN: 0in 0in 0pt">Ingredient Name: HYDROCARBONS</H1>
45%

Ingredient Name: HYDROXY COMPOUNDS
55%

<DIV style="BORDER-RIGHT: medium none; PADDING