Piston Slap: Focusing on Turbo 93 Octane Tunes?

Mark writes:

Sajeev,

Thanks for the recent advice on winter tires & wheels for my new Focus ST. I took delivery of the car two weeks ago and I’m having a blast. The first thing I did when I got it home was take Bark M’s advice and sign up for the Octane Academy.

So here’s another question: What’s your take on fuel octane and the ST?

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Piston Slap: The U Body, The Relay Bad Idle

U Relay Got A Problem? (photo courtesy: APaGttH)

TTAC Commentator APaGttH writes:

Sajeev!

Long time listener, first time caller. The patient: a 2005 Saturn Relay FWD3 with 151K miles, GM 3.5L V6 and 4-speed automatic. I am the fifth owner and this is our grocery getter and general abuse vehicle. I’m the longest owner – 4 years and about 55K of those 151K miles have been in my garage. I can’t comment on how well it was cared for from year 2 to year 6, but I have done everything by the book since 96K miles.

The Saturn developed a rough idle of sorts about a year ago. I swapped out the spark plugs, changed the fuel filter, and flushed the fuel injection. The car continues to idle rough. No CEL and no CEL history.

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Toyota Recall Includes Computer Reflash, Trimming Gas Pedals

We’ve gotten hold of documents relating to that other Toyota recall, the one from last fall regarding pedal interference with floor mats. Tying the floor mats to the seats was the short term fix, but now Toyota has the permanent solution. This includes cars with the Denso pedal that is not part of the sticky-pedal recall. The main features: cutting off the bottom of the pedal to make it shorter (yes, with a reciprocating saw) reworking the sound-deadening and carpet near the pedal, and most important, from our point of view, a reflash of the computer to give braking priority over throttle inputs.

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  • Analoggrotto I hope the walls of Mary Barra's office are covered in crushed velvet.
  • Mikey For 36.4 years i punched the clock at GM Canada.. For the last 15.5 years (frozen at 2008 rates) my GM pension shows up in my account. I flirted with Fords for a couple of years but these days I'm back to GM vehicles and still qualify for employee price. Speaking as a High School drop out ..GM provided myself and family a middle class lifestyle.. And still does .. Sorry if i don't join in to the ever present TTAC ..GM Bash fest
  • Akear Does anyone care how the world's sixth largest carmaker conducts business. Just a quarter century ago GM was the world's top carmaker. [list=1][*]Toyota Group: Sold 10.8 million vehicles, with a growth rate of 4.6%.[/*][*]Volkswagen Group: Achieved 8.8 million sales, growing sharply in America (+16.6%) and Europe (+20.3%).[/*][*]Hyundai-Kia: Reported 7.1 million sales, with surges in America (+7.9%) and Asia (+6.3%).[/*][*]Renault Nissan Alliance: Accumulated 6.9 million sales, balancing struggles in Asia and Africa with growth in the Americas and Europe.[/*][*]Stellantis: Maintained the fifth position with 6.5 million sales, despite substantial losses in Asia.[/*][*]General Motors, Honda Motor, and Ford followed closely with 6.2 million, 4.1 million, and 3.9 million sales, respectively.[/*][/list=1]
  • THX1136 A Mr. J. Sangburg, professional manicurist, rust repairer and 3 times survivor is hoping to get in on the bottom level of this magnificent property. He has designs to open a tea shop and used auto parts store in the facility as soon as there is affordable space available. He has stated, for the record, "You ain't seen anything yet and you probably won't." Always one for understatement, Mr. Sangburg hasn't been forthcoming with any more information at this time. You can follow the any further developments @GotItFiguredOut.net.
  • TheEndlessEnigma And yet government continues to grow....