Fuel discussions/questions - Octane Regular or Premium (merged threads)
#77
The average of 93 and 89 is still 91, as I mentioned earlier, so inadvertently, he's running at the recommended octane (which most stations don't carry, anyway).
#79
https://www.clublexus.com/forums/gx-...-screw-up.html
#81
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I prefer to use the recommended and I have experienced knocking in my MDX with using regular. See this link to help your decision.
https://www.clublexus.com/forums/gx-...-screw-up.html
https://www.clublexus.com/forums/gx-...-screw-up.html
#83
#84
#85
Nice informative move,Thanks
#87
#88
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I would not short-change such a nice vehicle. An analogy would be to have a 5-star meal accompanied by a $10 bottle of wine. Just give it the recommended fuel, drive and enjoy the vehicle instead of worrying over saving some money when you have already bought a "luxury" ride.
#90
Does it really make a different? Try it and conclude yourself? Even at $8/tank if you pump twice a week it will add up. Shell Premium 91 is $.55 per gallon more than Shell 87 here.
Ever wonder why 2010 and 2011 RX350 recommended (not required) Premium but 2012+ RX350 recommends Regular? Same for the ES line.
The 4.7L in the GX470 is the same as the 4.7L in the Tundra and 4Runner but the Lexus asks for Premium while the Totoya asks for Regular. Same thing as 4.6L in Lexus and 4.6L in the Tundra.
Premium MAY help the engine running smoother and Lexus wants its customers to feel that way (at the customer's expense).
Ever wonder why 2010 and 2011 RX350 recommended (not required) Premium but 2012+ RX350 recommends Regular? Same for the ES line.
The 4.7L in the GX470 is the same as the 4.7L in the Tundra and 4Runner but the Lexus asks for Premium while the Totoya asks for Regular. Same thing as 4.6L in Lexus and 4.6L in the Tundra.
Premium MAY help the engine running smoother and Lexus wants its customers to feel that way (at the customer's expense).
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Rygar470 (07-01-20)