what could happen if i use regular gas in a luxury car, which requires premium gas? ?

Sam P

Answer
A black hole will form inside the engine bay of your car, swallowing the entire Earth and ending life as we know it....LOL.

Modern engines have a knock sensor which is read by the ECU and if the ECU detects knock, it scales back timing and adjusts other run parameters to assure that no damage is done to the engine by running it on lower octane regular unleaded fuel, even if it's designed to run on premium.

You won't make quite as much peak HP running it on regular if it's designed to run on premium, but other than that you shouldn't have any trouble. Don't sweat it.

what is the difference btw supreme and regular gas and how does it effect the engine of a luxury car?

Sophster

Answer
The Super gasoline has a higher octane rating than regular. People think that means it burns hotter but that is actually not the case at all. Super is made for engines with high compression ratios. If you put regular gas (which is actually more readily explosive) into a high compression engine, the compression of the piston will cause the gasoline to explode before the spark plug actually fires, so the engine doesn't run properly and "knocks" or "pings" as the gas may try to re-ignite when the spark plug fires. Always run the octane grade that is recommended by the engine manufacturer, especially if you have a high performance engine with high compression ratios.

Powered by Yahoo! Answers

Are there any luxury cars that use regular octane gas?

luxury cars regular gas image

hardto_exp

Are there any luxury car brands that run on regular octane gas? I'm looking for a car between $3000 to $5500, so it probably wouldn't be made in the past 8-10 years. Are there any luxury car (Acura, Audi, Infiniti, Lexus etc) brands that manufacture a model that runs on regular octane?

Answer
technically, any turbo car will run just fine on regular gas. the reason is because turbo applications require (or are fortunate, depending on how you look at it) the fueling systems to operate over a much wider range than a normally aspirated motor. what happens is that the engine control monitors engine knock and sets ignition timing as advanced as possible till it detects knock. when that happens, it simply pulls back timing. low octane fuel will simply cause the knock to happen sooner and you won't get the performance you would normally using a higher octane fuel. in the EXTREME case, there is a point where you fall so far outside the stock map that the car simply won't run.

the bad new is since most turbo cars are performance cars, you typically give up some luxury (with one exception that I can think of) and in your list, it's only audi that sells turbo cars (I think).

the good new is gas is cheap these days so I'd rethink the need for cheap regular octane fuel.

the really good new is one of the best kept secrets in the used car market, the 92-95 Audi S4/S6 fills both requirements. the 2.2 litre turbo is still considered to be a technological marvel, even today. And they are almost free (ok, they meet your price range) considering their original ~$50k base price!

What are some cars that come with leather and are reliable?

Braga

Hi. Im 17 looking for a car. I want to spend around 4.5 - 5k for a car. I was origionally going to go with a Lexus ES300, but its mpg isnt that great and Super gas costs are pretty high. What sort of luxury cars out there that take regular gas and are reliable. I was looking at a Mazda 626, but people have said they're transmission have problems eventually.

Answer
First of all, Mazda 626s, while okay cars, are not remotely considered to be "luxury" cars. The vehicles that fit in this description include Lexus, Infinity, Acura, Jaguar, BMW, Mercedes, etc. Virtually all of them will have leather seats, though there all always exceptions. Unfortunately, the only luxury cars that will be in your price range are going to have extremely high miles on them. If this is not a concern of yours, then go for it. Plan on sinking quite a bit of money into your car the entire time you own it.

Powered by Yahoo! Answers