JHZR2
Staff member
Hi,
I have an old (opaque bottle with yellow-colored FP) that I have been using, and I got my father 2 gallons of FP (clear bottle and more reddish colored) for Christmas.
I know that FP has always said to shake well. Thats understood, but I got a severe change recently from the NEW (reddish formulation).
I had two 4oz type 2 plastic bottles, for adding FP. Ive used them for a while, and they work great. I left two bottles in my GF's acura for addition when we drive that car. One was filled with the older FP that I have, and one was filled with the newer stuff that I gave my father.
It sat for about 3 weeks, and have gone through some relatively strong thermal cycles (20F-65F outside temps, so itll be hotter during the day in the car).
This past weekend we were using the car, and we stopped to get gas. I pulled out the bottle with the newer FP, and in the bottom, probably about the bottom 1/4 of the bottle, was white settled stuff. It looked almost as if I had dumped some crisco into the bottom of it. It took me a good amount of shaking to get it all re-dissolved.
The other bottle of (older) FP had not settled out, and appeared fine.
It is important to note that I shake the bottles very well before distributing into smaller containers. So, I think that something either in the amounts of specific additives, or the miscibility in the carrier fluid, etc. has changed in the past 8 months.
Maybe thats why I hadnt ever noticed increased MPG, maybe I even had a bum batch?!? Maybe this was why using FP made my 98 ZR2 knock a slight bit with my (older) FP in it, whereas it doesnt knock at all when I use straight 87 gas...
Just thought Id share. Im not knocking FP/LC, and will keep using them. I just thought it was interesting.
JMH
I have an old (opaque bottle with yellow-colored FP) that I have been using, and I got my father 2 gallons of FP (clear bottle and more reddish colored) for Christmas.
I know that FP has always said to shake well. Thats understood, but I got a severe change recently from the NEW (reddish formulation).
I had two 4oz type 2 plastic bottles, for adding FP. Ive used them for a while, and they work great. I left two bottles in my GF's acura for addition when we drive that car. One was filled with the older FP that I have, and one was filled with the newer stuff that I gave my father.
It sat for about 3 weeks, and have gone through some relatively strong thermal cycles (20F-65F outside temps, so itll be hotter during the day in the car).
This past weekend we were using the car, and we stopped to get gas. I pulled out the bottle with the newer FP, and in the bottom, probably about the bottom 1/4 of the bottle, was white settled stuff. It looked almost as if I had dumped some crisco into the bottom of it. It took me a good amount of shaking to get it all re-dissolved.
The other bottle of (older) FP had not settled out, and appeared fine.
It is important to note that I shake the bottles very well before distributing into smaller containers. So, I think that something either in the amounts of specific additives, or the miscibility in the carrier fluid, etc. has changed in the past 8 months.
Maybe thats why I hadnt ever noticed increased MPG, maybe I even had a bum batch?!? Maybe this was why using FP made my 98 ZR2 knock a slight bit with my (older) FP in it, whereas it doesnt knock at all when I use straight 87 gas...
Just thought Id share. Im not knocking FP/LC, and will keep using them. I just thought it was interesting.
JMH