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This yellow fuel hose is about 6 months old. It turned brown and hardened to the point it’s brittle. The clear gas tank is starting to look the same way.

I am convinced this is from supplementing my fuel with VP octane booster. Have any of you had the same issue?
 
View attachment 179082

This yellow fuel hose is about 6 months old. It turned brown and hardened to the point it’s brittle. The clear gas tank is starting to look the same way.

I am convinced this is from supplementing my fuel with VP octane booster. Have any of you had the same issue?
I have never run an octane booster, so have not had any real experience with fuel lines hardening like that. Are you running a high compression head on her bike?
 
View attachment 179082

This yellow fuel hose is about 6 months old. It turned brown and hardened to the point it’s brittle. The clear gas tank is starting to look the same way.

I am convinced this is from supplementing my fuel with VP octane booster. Have any of you had the same issue?

As I recall, their octane boosters state they can discolor plastic tanks and containers.
 
I have never run an octane booster, so have not had any real experience with fuel lines hardening like that. Are you running a high compression head on her bike?
it’s stock compression, but I do run the squish on the tight side. I only add a few ounces per can which is enough to raise octane about 3 points nothing crazy.

I have noticed the quality of fuel varies quite a bit lately so I started to add a booster for a bit of a buffer. It’s far cheaper than buying high quality fuel by the can.

I’m not married to using a booster, I just thought it was cheap peace if mind. I’m just shocked at how quickly it’s wrecking the rubber and plastic oarts.
 
it’s stock compression, but I do run the squish on the tight side. I only add a few ounces per can which is enough to raise octane about 3 points nothing crazy.

I have noticed the quality of fuel varies quite a bit lately so I started to add a booster for a bit of a buffer. It’s far cheaper than buying high quality fuel by the can.

I’m not married to using a booster, I just thought it was cheap peace if mind. I’m just shocked at how quickly it’s wrecking the rubber and plastic oarts.

I have seen plenty of fuel lines looking like that but have never attributed it to octane booster.
I have however used it on numerous occasions when I could only get 88 octane.
Most of the fuel lines I've seen like that have been wrecked by ethanol or UV.
Replacement Tygon lines seem more durable than OEM.

The only fuel lines I know that are like totally ethanol proof are the PTFE ones but they're kind of hard to work with.
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