Premium, middle grade or regular? (merged threads)
#196
Like everyone has been saying: there isn't really any difference between premium and regular. With that said, I don't think it would harm your car at all if you switched back to regular.
#197
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Hey guys on this topic I got a question I have a 97 es300 and just recently I started putting premium gas because I heard it was better but since I'm reading on this tread ita not better do u think the switching back to regualar would harm the car as I've only been putting premium for about 1000 miles
First of all, initially when you filled up with premium its almost certain some 'regular' was still in the tank, so this diluted the premium a little bit, so for the first tank it wasn't pure.
It's not a modded car, so switching between fuels won't do anything.
#198
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My 2000 has 123K on the clock, I use regular E10 and get 26-28mpg combined - more highway miles than city [65 mile commute each workday]. Have been able to stretch the tank to 450 miles but not much left... maybe 1/2 gallon.
#199
My personal best on my 93 is 385 miles on a tank. That was pure highway running 80 - 85 MPH the entire time. When I am driving city/highway mix, I usually average about 330 miles per tank. I have been using 87 octane.
#200
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Ahh...the sweet smell of 87-octane
Of late, last couple weeks, I'm smelling some pretty heavy gas vapors coming from my 97 es300. Any of the usual suspects I can start looking at?
Cheers,
DD
Cheers,
DD
#202
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#203
Did it rev longer time to start? Try to clean the MAF sensor.
https://www.clublexus.com/forums/es3...af-sensor.html
https://www.clublexus.com/forums/es3...af-sensor.html
#204
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Did it rev longer time to start? Try to clean the MAF sensor.
https://www.clublexus.com/forums/es3...af-sensor.html
https://www.clublexus.com/forums/es3...af-sensor.html
I'll pull it out tomorrow when my wife gets back and let ya know.
DD
#205
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No change
Did it rev longer time to start? Try to clean the MAF sensor.
https://www.clublexus.com/forums/es3...af-sensor.html
https://www.clublexus.com/forums/es3...af-sensor.html
I'm starting to think it's a gas tank leak as the smell does seem heavier from that end.
No joy,
-DD
#206
Try to clean or replace the PCV valve too.
After cleaning this 2, reduce my 90% smoke from first 5 mins.
https://www.clublexus.com/forums/es3...pcv-valve.html
After cleaning this 2, reduce my 90% smoke from first 5 mins.
https://www.clublexus.com/forums/es3...pcv-valve.html
#207
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Fuel Octane question
I have a 1997 Lexus ES300. As long as I have had it, I have been using 87 octane fuel. I want to experiment and possibly try 91 or 93. would this mess anything up? and can i put 91/93 in the tank if there is left-over 87 in the tank?
Thanks in advance for your help.
Thanks in advance for your help.
#208
Mixing the fuels won't hurt anything. If you are very sensitive to your car you might notice a little more power and, if it's been pinging at all, that should go away. Otherwise, you might notice just a little less fuel mileage but I don't think it's enough to notice unless you keep very close watch on it.