IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

Gas for 200t, does it really need premium?

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Old 04-15-16 | 11:46 AM
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Lets get something straight ... I'm not complaining about putting in 93, just asking if it really needs it.
The Toyota dealer convinced my girlfriends mom she needs 93 in her Camry because it had the V6 ... Not everything needs 93 because it's "recommended".
I just filled up with 93 and will continue to do so.

Good talk everyone!
Old 04-15-16 | 11:51 AM
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Originally Posted by mjeds
actually the ECU will pull timing resulting in lower power and as a result IF something were to happen to the motor and Lexus reviews the ECU they will know that lower than recommended octane was used and they can deny warranty coverage.

I don't understand the logic of people, the difference (at least around here) between 87 and 91 octane is 20 cents, (10 cents between 89 and 91) for a full tank in my RCF that relates to a difference of $2.80, are people really that hard up for $3?

most people spend more than $3 on a cup of coffee, a pack of cigarettes, hell a damn beer at a bar.




you spend north of $40,000 for a premium brand/model car and then balk @ spending an extra $3.00 for the fuel per tank?
I'd love to know where that is because the cheapest differential i see in grades if you is $.20 per grade. This means that premium fuel is at least $.40 per gallon more expensive than regular.

Again, this is the cheapest. Normally it's more like $.50 between regular and premium and I've seen as high as $.70.
Old 04-15-16 | 11:56 AM
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Originally Posted by litesoarer
I'd love to know where that is because the cheapest differential i see in grades if you is $.20 per grade. This means that premium fuel is at least $.40 per gallon more expensive than regular.

Again, this is the cheapest. Normally it's more like $.50 between regular and premium and I've seen as high as $.70.
It really varies by region. In my area (greater Seattle area) it's 10 cents per grade more.

This morning the local Chevron is:

regular: $2.26
midgrade: $2.36
premium: $2.46

Costco is currently:

regular: $2.08
premium: $2.28

You are correct, though, that in some areas the difference is quite significant.
Old 04-15-16 | 12:01 PM
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Originally Posted by litesoarer
I'd love to know where that is because the cheapest differential i see in grades if you is $.20 per grade. This means that premium fuel is at least $.40 per gallon more expensive than regular.

Again, this is the cheapest. Normally it's more like $.50 between regular and premium and I've seen as high as $.70.


the highest priced fuel in the country, go old southern California.


filled this morning: $3.15 for 91 octane, 89 was $3.05 and 87 was $2.95:
Attached Thumbnails Gas for 200t, does it really need premium?-gas-prices.jpg  
Old 04-15-16 | 12:02 PM
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Originally Posted by litesoarer
I'd love to know where that is because the cheapest differential i see in grades if you is $.20 per grade. This means that premium fuel is at least $.40 per gallon more expensive than regular.

Again, this is the cheapest. Normally it's more like $.50 between regular and premium and I've seen as high as $.70.
Even so....$0.70 x 17 gallons = $12 (and, to be honest, I've never seen that big a differential between regular and premium). Most folks are filling up once a week. If $12/week seems steep, a $40-50k luxury car probably wasn't the best decision.
Old 04-15-16 | 12:04 PM
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Originally Posted by mjeds
the highest priced fuel in the country, go old southern California.


filled this morning: $3.15 for 91 octane, 89 was $3.05 and 87 was $2.95:
Sams was $1.959 for regular. Premium was $2.359.
Old 04-15-16 | 12:20 PM
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The station I go to most by my office ...
87 - $2.05
89 - $2.25
93 - $2.45
Old 04-15-16 | 12:22 PM
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Is 91 octane recommended for turbo car? Yes.
Is 91 octane REQUIRED for turbo car? NO.

I did put 91 in my IS200T.
For the last 20 years, I think 1/3 or maybe 1/2 of those years I put 87 octane in my MK3 Supra Turbo and it still run fine. Yes, the car isn't perform as good as with 91, but I didn't break anything.
am I going to put 87 in my IS? Probably not or not intentionally.
Another thing. On my 2012 Camry Hybrid, the manual recommended 87, on my bro ES 300H, the recommended is 91. I don't know why but the 2 engines are basically the same.
Old 04-15-16 | 12:25 PM
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Originally Posted by kyoungjook
Even so....$0.70 x 17 gallons = $12 (and, to be honest, I've never seen that big a differential between regular and premium). Most folks are filling up once a week. If $12/week seems steep, a $40-50k luxury car probably wasn't the best decision.
It's a pretty ridiculous spread,
20-35%
Old 04-15-16 | 12:27 PM
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and here we go again!! most, if not all lexus will require premium gas!! All cars that have force induction require premium!!!
Old 04-15-16 | 12:32 PM
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Originally Posted by EJ255t
and here we go again!! most, if not all lexus will require premium gas!! All cars that have force induction require premium!!!
This has been established.

But the price differential isn't the same everywhere either as one post indicated $.20c between regular and premium. Whereas I've personally seen as high as $.70 spread. (Beyond ridiculous when sub $2.00 gas is concerned)
Old 04-15-16 | 12:46 PM
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Originally Posted by litesoarer
This has been established.

But the price differential isn't the same everywhere either as one post indicated $.20c between regular and premium. Whereas I've personally seen as high as $.70 spread. (Beyond ridiculous when sub $2.00 gas is concerned)
I filled up at BP yesterday and 87 was $1.99. 91 was $2.69.
Old 04-15-16 | 01:00 PM
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Question!

I have been using Shell and Chevron premium grade.

Is Costco premium better or worse? I'm a cheap *** and drive an is350 which eats gas like a mf.

I'm sure Costco is cheaper in terms of price, but does it run as well as Shell/Chevron?
Old 04-15-16 | 01:04 PM
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Originally Posted by nathantse
Question!

I have been using Shell and Chevron premium grade.

Is Costco premium better or worse? I'm a cheap *** and drive an is350 which eats gas like a mf.

I'm sure Costco is cheaper in terms of price, but does it run as well as Shell/Chevron?


the government sets fairly stringent standards for all gasoline that is sold in the United States. When it comes to octane level and other specific gasoline characteristics, all gas is basically the same. The difference between the fuel that you buy at branded gas stations comes down to the detergents that are added to the gas.


The federal government has required since 1995 that all gasoline which is sold in the US must contain a certain amount of detergent additives. These additives are Environmental Protection Agency (EPA) approved, and the government has specified the amount of detergent which must be added to keep vehicle engines free from deposits. Costco gasoline meets all these requirements, or it couldn’t be sold in the United States.


A number of automakers made the decision that the US government additive requirement wasn’t high enough for many cars. As a result, they developed a “Top Tier” standard. In order to meet the “Top Tier” designation, the fuel sold at the gas station had to meet additive requirements higher than is required by the US government. Costco fuel meets this top-tier standard. Costco gasoline is rated as equal to any other major brand gasoline
Old 04-15-16 | 01:06 PM
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Originally Posted by MatrixPC
Is 91 octane recommended for turbo car? Yes.
Is 91 octane REQUIRED for turbo car? NO.

I did put 91 in my IS200T.
For the last 20 years, I think 1/3 or maybe 1/2 of those years I put 87 octane in my MK3 Supra Turbo and it still run fine. Yes, the car isn't perform as good as with 91, but I didn't break anything.
am I going to put 87 in my IS? Probably not or not intentionally.
Another thing. On my 2012 Camry Hybrid, the manual recommended 87, on my bro ES 300H, the recommended is 91. I don't know why but the 2 engines are basically the same.
Your brother is misinformed. The ES 300h (and 350) take 87 octane. As for the 87 usage, I've occasionally tried it on my NX 200t and IS. I noticed a slight difference in power and smoothness, enough to not go back again.

Originally Posted by EJ255t
and here we go again!! most, if not all lexus will require premium gas!! All cars that have force induction require premium!!!
There are a notable few that only require 87: CT200h, ES350, ES300h, RX350, NX300h.

Originally Posted by listairee
I filled up at BP yesterday and 87 was $1.99. 91 was $2.69.
It's close to Canada's cost. We pay about $0.20 /L more or about $0.75 more a gallon for premium fuel. At that price difference, it's easier to see why people ask the questions on the effects of using a lower octane fuel. But rule of thumb, if it says "PREMIUM FUEL REQUIRED", put that in. If it's "recommended", save the money and go with 87.



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