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I've always wondered about that. I may be mistaken but I'm under the impression that the Land Cruiser can take regular but the LX570 requires premium. Not sure why if true. "Wrong does not cease to be wrong because the majority share in it." L.Tolstoy "A government is just a body of people, usually, notably, ungoverned." Shepherd Book | |||
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Interesting article. http://newsroom.aaa.com/wp-con...h-Report-FINAL-2.pdf Six different cars that recommend premium, run on premium and regular on a dyno. MPG and HP effect. The link is to a 68 page report of their findings. Interesting reading. | |||
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goodheart |
Vanwall--I recognize that name. Wikipedia: Vanwall racing _________________________ “ What all the wise men promised has not happened, and what all the damned fools said would happen has come to pass.”— Lord Melbourne | |||
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That's an awesome and incredibly thorough article -- thanks for posting that. Cliff Notes after 69 pages: "The following recommendations are specific to vehicles labeled premium recommended. There is not a clear case where premium gasoline is beneficial from a cost perspective. In most cases, the extra cost of premium over regular does not result in a positive return on investment (lower cost to drive a given distance). However, there are instances – and they vary widely by vehicle type and model – where the use of premium gasoline can be marginally beneficial." -------------------------------- Proverbs 27:17 - As iron sharpens iron, so one man sharpens another. | |||
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Stirling Moss fan here. | |||
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Too clever by half |
Just be aware not all detonation that can occur falls in the audible spectrum. In other words you could experience detonation, but not hear it. "We have a system that increasingly taxes work, and increasingly subsidizes non-work" - Milton Friedman | |||
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His Royal Hiney |
For the first three years, I used premium as specified for my Lexus gs350. But after that, I switched to the middle grade. At that point, I figure the incremental wear or damage from the lower grade isn't going to be significant over the normal wear and tear. "It did not really matter what we expected from life, but rather what life expected from us. We needed to stop asking about the meaning of life, and instead to think of ourselves as those who were being questioned by life – daily and hourly. Our answer must consist not in talk and meditation, but in right action and in right conduct. Life ultimately means taking the responsibility to find the right answer to its problems and to fulfill the tasks which it constantly sets for each individual." Viktor Frankl, Man's Search for Meaning, 1946. | |||
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Member |
I did not know that. Is there another way to detect it, other than hooking it up to a diagnostic computer? | |||
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| Moving cash for money |
The Mazda CX-9 is rated 227 HP with 87 octane, 250 HP with 93 octane. "When in danger or in doubt, run in circles scream and shout" R.I.P. R.A.H. Ooga Chakka Hooga Hooga Ooga Chakka Hooga Hooga NRA Basic Rifle Instructor Red Cross First Aid/CPR/AED Adult/Child/Infant Instructor Red Cross Wilderness First Aid Instructor | |||
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| No ethanol! |
If I recall correctly the factory numbers on my 6.0L G8 were 355 on 87 and 361 on premium. This is also my first modestly faster 10.4 to 1 compression engine. Though it can accept all 3 grades (NOT E85) I can tell you from over 100,000 miles of driving, the feel of each grade is different. I run 89 or premium because of the response out of the pedal. The car feels mundane with 87. I have about a million miles with a dozen other cars and only 1 other car felt different with better gas, but it IMO it does happen. Perhaps the compression ratio?? Motorheads please feel free to clarify. ------------------ The plural of anecdote is not data. -Frank Kotsonis | |||
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Member |
If it’s turbocharged and it says run 91/92, I run premium. If the mfr. of said car says use premium, I use premium. If the extra $5 per tank is that big of a deal I don’t think I’d be buying a new car. What am I doing? I'm talking to an empty telephone | |||
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