I was passing through Columbus last week and called Miss Kay in the AvLube office before I arrived. She had my case of Primrose ready along with the billing receipt, (I gave her a billing number over the phone), and would have been out the door quickly if I hadn't sat down to listen to her stories about her dad bringing in Pennsylvania oil wells in the 1950's.
I apologize for now having gotten back with you sooner as I have been out of town; you are probably in Columbus as I write this post and have no computer! Hopefully you have called the office and gotten things arranged... If anyone is in the Columbus, Ohio area AV will do whatever it takes to get whatever one needs to them! We have set cases of product on stumps along with receipts! At midngight! We subscribe to 'the golden rule: the person with the gold makes the rules..
George MorrisonEdited by: Georgecls
Primrose is an emulsifying diesel fuel additive. Additionally, Primrose 405 contains detergency for our injectors, rust inhibitor, lubricity enhancer and increases cetane number 4 to 5 points (depending on fuel quality). At a treat rate of one to two ounces per tankful...
Regarding "Is it ok to add Primrose 409 to fuel already treated at the pump?" We have not experienced any operational problems/incompatability issues with either Primrose 405 or 409 and pre-treated pump diesel fuels. Generally the pre-treat levels are at "just enough" levels for the anticipated temperatures and thus do not pose a significant chemical component. i.e. not a concern... But an excellent quetion..
So another dumb question, but I can't find either one here on the shelves to read the labels.
What is the difference in 405 and 409 and which one is better.
I live where the avg. temp is 60 and the low is 40 and the high is 100. Mostly dry with only rain on occassion, never any snow or ice, don't know what a block heater is and thought they gave me a 'Bra" for my truck when I found the "winter front" under the back seat LOL ha ha ha
I bought the FFFFFFFFPPPPPPPP concentrate stuff last time and about out, so need to replace it. Sounds like the Primrose stuff is better, but which one 405 or 409?
I will look for it the next time I am near a truck stop.
A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more!