what gasoline is recommended
02-12-10, 08:57 PM
#1
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what gasoline is recommended
Hello i am new to the lexus world so just wondering what fuel type is best for my 99 ls 400.. as i previously owned a lincoln ls that when regular gas was put in it would run like crap... will the ls 400 be the same i mean i run premium in it anyway but just wondering if regular would hurt the car...
02-12-10, 09:56 PM
#4
Lexus Test Driver
Read the owner's manual, it will specify what grade fuel is recommended. I run 89 in my '97 LS400, but it contains 10% ethanol, which the manual specifies is fine to run. It's cheaper than 87 too.
On occasion I'll run Shell V-Power, but that is rare occurrence.
On occasion I'll run Shell V-Power, but that is rare occurrence.
02-12-10, 10:59 PM
#6
Lexus Test Driver
Always do the best as far as gas is concerend for your Lexus sir. You can every blue moon use regular or one up higher than regular which is just below premium! You have a great ride sir. Take care of it and it will take care of you!!! The better gas you use the better it runs. If you are just set on using regular my friend use half premium and half regular at least or mid grade(in between regular and premium! Much good to you with your new Lexus!!! L.G.N.M
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02-14-10, 06:43 PM
#12
Originally Posted by PureDrifter
search, there's a huge thread on gas choice
I don't mean to discourage you from posting, orangeteg, but if you haven't tried the Search function, give it a try. First back out of this thread to the forum index and click on the Search this Forum link. If after searching you don't find your answers or need clarification, post away.
02-15-10, 12:07 PM
#15
About the ethanol mixture: Mixing in the booze isn't bad for the fuel at all, except for two things. These are that too much booze (Yes, ethanol is C2H5OH, i.e. ordinary booze.) apart from making you loose your mind also makes the car difficult to start in really cold conditions. Second is that ethanol doesn't contain as much energy as gasoline (some 30-40% less), hence it has a negative effect on your MPG average.
What is positive is that the oktane reading (RON) is about 111(!!!). So mixing in ethanole doesn't hurt at all if you are concerned about whether your gasoline is premium "enough". Another side-effect of having ethanol in the tank is that any water (condensed or other) mixes with the booze and will not cause any problems with ice or whatever.
Here in Sweden we get some tax discounts on environment friendly cars, where ethanol powered cars is one solution. Hence most gas stations sell a mixture called E85 (85% ethanole and 15% gasoline) which has an effective RON (i.e. octane reading) of 104. Currently it's more like E75 for avoiding starting problems, cause we're below freezing point in all of Sweden.
Most modern cars with injection would run without problems on that E85 soup, even though it's better to have a car dedicated to using E85 as it will run on 100% gasoline without any problems.
Reading through the other posts, it seems like some american non-premium gas has a mixture of say 10% ethanole in it. As ethanole rises the octane reading I wonder what kind of djungle soup they started up with.
By the way, what did you say your different octane levels was? 87 and 89? Here in Sweden the low-grade fuel is 95 and premium is 98 (Shell V-Power is 99.)
//Björn
What is positive is that the oktane reading (RON) is about 111(!!!). So mixing in ethanole doesn't hurt at all if you are concerned about whether your gasoline is premium "enough". Another side-effect of having ethanol in the tank is that any water (condensed or other) mixes with the booze and will not cause any problems with ice or whatever.
Here in Sweden we get some tax discounts on environment friendly cars, where ethanol powered cars is one solution. Hence most gas stations sell a mixture called E85 (85% ethanole and 15% gasoline) which has an effective RON (i.e. octane reading) of 104. Currently it's more like E75 for avoiding starting problems, cause we're below freezing point in all of Sweden.
Most modern cars with injection would run without problems on that E85 soup, even though it's better to have a car dedicated to using E85 as it will run on 100% gasoline without any problems.
Reading through the other posts, it seems like some american non-premium gas has a mixture of say 10% ethanole in it. As ethanole rises the octane reading I wonder what kind of djungle soup they started up with.
By the way, what did you say your different octane levels was? 87 and 89? Here in Sweden the low-grade fuel is 95 and premium is 98 (Shell V-Power is 99.)
//Björn