Using 87 Octane in 1990 LS400
#1
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Using 87 Octane in 1990 LS400
I know that for the LS400's it says PREMIUM unleaded fuel only.. but what happens if you just use 87 octane? does it lessen the engine life or what?
#2
is this like the #1 discussed topic now because the gas price is high now?
read here, the verdict: don't do it
https://www.clublexus.com/forums/sho...d.php?t=354962
read here, the verdict: don't do it
https://www.clublexus.com/forums/sho...d.php?t=354962
#5
Actually, premium, relative to the cost of regular unleaded, has never been cheaper. Since most gas stations still have a 10 cent spread between grades, percentage wise premium is only 2.5% more expensive than regular. It used to be 5 to 6 % more expensive than regular.
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