whats your fuel and why?
- Thread starter yanski
- Start date
Stroker Hawaii
New Member
Umm, sorry but I can't understand all the posts not in English. Using unleaded and leaded fuel does not have much to do with having a catalytic converter. Of course leaded fuel will mess up a catalytic converter but it will also mess up your valves and how they seat.yanski said:
Back in the old days before lead was outlawed in the US, that was the cheapest way that refiners could boost the octane of the gasoline to meet the octane specs. A little bit of lead boosts the octane of gasoline a tremendous amount.
What lead does is it coats your valves and internal components of your engine. Engines were made differently when lead was used. The lead coating of your engine's internals would help seal stuff and lubricate. Without lead, Engine makers now have to make internal engine components of different materials and harder to compensate for not having the lead coating.
Engines today and designed to run on unleaded fuel. If you use leaded fuel then you’ll coat your valves with lead and they won’t seal properly. Bottom line is you’ll mess up your motor if you run leaded gas for an extended period of time.
Using leaded gas just so you can have a high octane isn’t going to make a performance difference and it will mess up your motor. Unless you have a really old motor that was built to run on leaded fuel, one that was built before they took lead out of gasoline. Or if you want to overhaul your motor on a regular basis like the racers do.
I don’t know exactly much about the components used to build motors these days, but I’ve worked in an oil refinery making gasoline for the past 18 years. So I know a lot about gasoline and all that technical stuff.
Stroker Hawaii
New Member
By the way an octane is a carbon molecule with 8 hydrogen bonds. Gasoline is made up of many different types of carbon molecules and hydrocarbon chains.
All the octane molecules really do is prevent gasoline from detonating at the wrong time. Pre detonation or post detonation. Which is knocking and pinging.
Usually with high compression engines you need a higher octane to prevent predetonation when your piston compresses the air fuel mixture in the combustion chamber. The fuel needs to ignite and burn at the proper speed when the spark hits it and not before, it also has to complete it's burn in a specified time. If you heavily modify your motor and increase the compression then you'll need a higher octane gas. Or if your motor is really old then it might start to knock or ping. Other than that, use the octane rating specified in your owners manual. Higher octane won't increase your power unless you modify your motor and increase your compression which will require a higher octane.
All the octane molecules really do is prevent gasoline from detonating at the wrong time. Pre detonation or post detonation. Which is knocking and pinging.
Usually with high compression engines you need a higher octane to prevent predetonation when your piston compresses the air fuel mixture in the combustion chamber. The fuel needs to ignite and burn at the proper speed when the spark hits it and not before, it also has to complete it's burn in a specified time. If you heavily modify your motor and increase the compression then you'll need a higher octane gas. Or if your motor is really old then it might start to knock or ping. Other than that, use the octane rating specified in your owners manual. Higher octane won't increase your power unless you modify your motor and increase your compression which will require a higher octane.
Stroker Hawaii
New Member
I worked for the Chevron oil refinery in Hawaii for 18 years. Chevron, Caltex, and Texaco is all the same company. I'm not sure about the Philippines and how thier government regulations are. But all gasoline is basically the same. Because they all have to meet the same government mandated specifications. Oil companies trade and sell gasoline to each other. Your Caltex gasoline could actually be made by Shell.BasTarD said:caltex gold, for a clean engine dahil sa techron...
pa ot mga papi..e 10 ready na ang STOCK carbs kaya walang problem, ang rubber components ang masisira kasi pag may e10 pero ang stock carbs ng t135 is e10 ready dahil espesyal ang mga rubber components gamit nyan..
What is different is the additive package. Like you mentioned Techron. Oil companies can buy, sell, and trade the base gasoline from each other but they all add their own brand of additive, or detergent package, which is what Techron is. All gasolines must have a detergent package that meets govenment cleaning standards. What's good about Techron is that it exceeds the government's minimum standards. All gasoline will keep your engine clean because the government says it has to. So far, Techron is the best detergent package, but that's not to say the others aren't good. How much better it is I'm not sure I'd have to look up the scientific data. There's a lot of tests gasoline must pass before it can be sold, if it fails it gets reblended or reprocessed. If it failsto meet one spec then that's bad because that means an entire tank is off spec and needs correcting. That could be thousands of barrels of gasoline that needs reblending or reprocessing and that is expensive and costs the refinery money to correct the off spec fuel.
