Mixing 91 and 98 octane.

[pedrotski]

Hey guys,

I do a ton of country hill driving, And i have found that if i mix half of my tank with 91 and half with 98 (BP) i get an extra ~200k's from my tank. I have been on this for weeks now, testing different types. I tried 98 and my car had less power in the hills, 95 was slightly better than 98, and 91 will get me about ~500k's have.

I have found when i am back on the coast where the air is more dense that it is amost the same as just using 91.

The only problem i have found is it takes 3 engine turns to start the engine not 2.

Anyone know why or can anyone who lives in the hills try this.

 

[Hunter SS]

98 is too high for your engine...... i used to own a VS statesman... it ran ok on 95, but not a whole lot better than on 91... certainly not enough to justify the extra cost. What it did like though, was E10!! went like a rocket on it.

 

[oOSparkyOo]

98 oct equivalent to that shell v power or synergy 8000 that premium unleaded ?

 

[System]

would that bio-unleaded stuff work ok for a VR? thought about using it, since its always like 10 cents cheaper :thumbsup: