LX 600 fuel question (1 Viewer)

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I am going to apologize in advance if this has been posted or discussed already on here, but I have not been able to find any related talk. Does one have to use premium fuel for the new LX 600? Not sure why Toyota is recommending it as it does add significantly to the travel expense with as many miles as we put on a vehicle in a year's time. We are considering a F Sport trim coming from a Sequoia-my 200 gets regular. Perhaps there is a better mpg on the LX to help negate some of the increased fuel cost of regular vs premium?
 
Min 91 - the manual is your friend.

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Some vehicles are premium recommended, some are premium required.
On the 600 it is required.
Some will say “it’s the same engine as the Tundra and it doesn’t require premium”.
It is the same engine but it is not tuned the same. Using non premium will cause damage OVER TIME (i.e. you pull up to a gas station and the premium pump is broken….go ahead and put in whatever the highest avail octtane gas). It will also run with less power, lower than a Tundra using regular gas. Next fill up go back to Premium.
 
I've had a bunch of "premium required" vehicles over the years and never did it. Never had a problem. These engines are made for service in third world countries.
 
I've had a bunch of "premium required" vehicles over the years and never did it. Never had a problem. These engines are made for service in third world countries.
I was the same way with my previous 5.7 vehicles. I even used to go with a heavier weight of oil. With these new engines I’m by the book. To each their own.
 
Question, does the gx550 require premium too?

As far as my 600 I just get it at Costco, small amount more for better performance (as it would detune if not the right octane).
 
Question, does the gx550 require premium too?

As far as my 600 I just get it at Costco, small amount more for better performance (as it would detune if not the right octane).
Yes.
 
Ehh, yeah I dont like the gx550 for sure now. It has the base SR tundra motor and shouldn’t require more than 87 oct.
 
Premium because forced Induction and hopium that premium fuel top tier fuel will avoid deposit build up.
 
"I just spent 100K+ on a new vehicle and lord knows how much in insurance but I'll be G-Damned if I am gonna spend an extra .30-.50 a gallon on premium, that is a rip off!"
Every person citing "this is the same engine as x vehicle" and "these are built for the 3rd world"
Exactly. I like good gas mileage and cheap gas as much as the next guy, but I really don't care about what grade of gas.
 
If you are not keeping it past 150k-200k then you may never have any issues. Might as well not change transmission fluid , AHC fluid, or diff fluid while at it to help save money.
 
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If you are not keeping it past 150k-200k then you may never have any issues. Might as well not change transmission fluid , AHC fluid, or diff fluid while at it to help save money.
AHC fluid service life is 60K miles, Diffs are 30K

Again drop a 100K+ on a vehicle, thousands in insurance and registration taxes but "save" money by avoiding a couple of hundred dollars worth of service. Make it make sense.
 
AHC fluid service life is 60K miles, Diffs are 30K

Again drop a 100K+ on a vehicle, thousands in insurance and registration taxes but "save" money by avoiding a couple of hundred dollars worth of service. Make it make sense.
💯. We are saying the same thing, I was being sarcastic. There are plenty of threads in the 100 section of 2nd/3rd owners having to deal with issues that the 1st owners created through either willful or unknowing (depending) neglect of the vehicle in the first 100k.
 
I've always been curious how altitude affects octane and the engine tune. Can someone who knows more about this chime in? With the engine tune, is it for a certain mix of oxygen and fuel and do lower oxygen environments affect this, if at all, with modern engines? I've always run 85 in my 100 and 200 and never had any issues but I wouldn't do that if I had a 600/700.... And, how/why is the tune different on a Tundra? Is it because a truck will more likely tow?
 

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