Premium fuel really needed?
Pole Position
Joined: Jun 2015
Posts: 2,878
Likes: 428
From: Idaho
I tend to trust the engineers who build these engines over a bunch of clublexus dudes. Personal preference. If you want to buy a $100k vehicle and skimp on fuel, get worse mpg and slightly lower HP, knock yourself out. I tow too much to **** and moan about 91-93 octane recommendations.
We just got back from a 1500 mile trip from Idaho to California. MPG for the trip averaged 17.48 mpg. Gas used was a mix of 90 to 93 octane, my usual no-ethanol was unavailable.
No complaints.
Pole Position
Joined: Jun 2015
Posts: 2,878
Likes: 428
From: Idaho
Higher octane, when under load (especially when towing), will less likely cause engine knock...due to the detonation timing. normal driving you probably won't notice much...maybe u get to drive further distance when using higher octane fuel. To me, I always put in premium.... 30 cents / gallon diff each time 17-18 gallon fill up cause a diff of $4-5, to me the diff in price is absorbable. Similar speaking, some ppl say you can put in 5/30 regular engine oil...despite the manual says 0/20 syn.... I only put 0/20 every oil change on 5k interval though.
The 0/20 is there for best possible (read fractional) mpg numbers. Great in the winter, ridiculous in the summer where oat's are in the 80's +++. Toyota has changed oil weight numbers more than a few times in their manuals.
Last edited by hankinid; Aug 2, 2022 at 08:05 PM.
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