Hot Rods What brand of Petrol do you prefer in your baby and what Grade?

Hello,

When a friend of ours worked in the Signal Hill Oil Fields, he brought back some information gathered from his friends in the company lab that was on site. One of those young guys we met at a gathering in this ocean view apartment on top of Signal Hill. This guy worked in a lab and told us that all grades of gasoline were powerful agents. He asked us what we used in our cars. When we told him that we used the Supreme Level Gas at Chevron or Standard Oil Gas Stations, he kind of chuckled.

5 gallons at 26 cents regular each gallon costs $1.30 a full tank of 10 gallons cost $2.60.

5 gallons at 30 cents supreme each gallon= $1.50. a full tank of 10 gallons cost $3.00. a savings of .40 or at least 1.5 gallons more gas if used at the regular gas cost. But your car ran poorly using regular gas.

At first, it was minimal and most of the time other passengers paid for the gas used in the day and night usage of the hot rods. Daily to school and if cruising around on the weekends, “chipping-in” was the only way to go… So, premium was the gas to get every time. No worries about underperformance or pinging, or even stumbling at full acceleration. The top gas used worked every time. Rumbling to school or out on a late night cruise with performance in mind. No problem using the top grade gasoline, premium.

But, when only a passenger or a date was the only person in the car to school or cruising around, the whole cost of a full tank was on me. No, I did not ask my date to pay for gas.

Jnaki

The friend who worked at the company gasoline lab told us that the Regular Grade Gas is low octane, which we knew. But that if mixed with the Supreme Level gas at the other end, the low lever octane gets automatically boosted to the premium level. The savings seems minimal for the ½ tank of regular and ½ level of supreme in a full fill up. But, it worked and did not sputter on full power acceleration.

The cost savings was there and comparing $1.30 -3.00 almost a full gallon extra. A full tank 50/50 was almost two gallons extra for the cost. So, by mixing 50/50, we saved and had extra gas for our extended cruising areas.

Was the mention of mixing 50/50 percentage of low level octane versus high octane a factor? For a while, a lot of our friends were doing such mixtures. As the gas cost got higher, the savings were evident. The performance was not hindered by the 50/50 mixture. YRMV

Note:

These days of graded gasoline is restricted to three levels and most high performance motors have a sticker that says use 91 grade or higher. So, the choice is up to you. Still on warranty? Any damage may get deeper in inspection if the repair is going to cost thousands. So, that is up to you…

The lowest grade was for most motors.

 

Gulf 93 octane in the 37 Ford with a 12 comp. and VP C-12 in my race car with 13:5 comp .

 

Fluroelastomer lines and seals, E10 in the tank. 91-octane, by the (R+M)/2 method.

My Falcon has 11.25:1 static compression, but the narrow LSA cam bleeds some off at low RPM.

Brands don't matter. The only variance is the additive package. I live near two refineries. The same trucks fill all stations.

I won't build something for the street that requires special fuel, or special additives.

 

So glad I asked this.

 

I dont have any high compression engines so i use the cheapest fuel that i can find.