7,885 reputation
11435
bio website stackoverflow.com/users/5812/…
location Rhode Island
age 45
visits member for 2 years, 2 months
seen 21 hours ago
stats profile views 133
Computer scientist working at [A Facility] developing [Systems] that [Do Stuff] at [Places].

Mar
16
comment 2007 prius premium gas or not?
@Larry, I'm not stipulating that the units fail before the warranty period. Warranty periods and the associated engineering problems are an exercise in expected value, though. The manufacturer is trying to minimize the expected cost to them: (probability of failure before X miles * cost of replacement) + (probability of working fine after X miles * cost of required engineering). The whole issue is a little muddled since batteries don't fall off a failure cliff. They degrade for a while before the customer really notices (which might not be the case for this OP).
Mar
15
comment 2007 prius premium gas or not?
@Larry, I'll bet it's not most batteries that last much longer considering how warranty duration calculations are done. Regardless, these batteries are older. They won't have the efficiency that they did when new. On the third hand (!), it's the driver's car: she has to make the call what works best.
Mar
15
answered Does accelerating faster worsen fuel efficiency?
Mar
15
revised Does accelerating faster worsen fuel efficiency?
deleted 184 characters in body
Mar
15
revised What modifications need to be made to an engine to enable higher safe RPMs?
edited tags
Mar
15
comment What modifications need to be made to an engine to enable higher safe RPMs?
Moving parts => steady state motion plus torques plus accelerations plus jerk (the first derivative of acceleration). Everything gets much worse much faster as rpm increases. The conversion of linear to rotational energy and back again, the stresses... urgh. The mind boggles.
Mar
14
comment What is recommended way to fix rear station wagon windshield wiper?
See Rory's answer below: a picture of the spring part of the arm will make it clear if that's the issue.
Mar
14
comment What is recommended way to fix rear station wagon windshield wiper?
Could you add a picture? It would be more clear about what's currently bent, zip-tied, etc.
Mar
14
revised What is recommended way to fix rear station wagon windshield wiper?
deleted 21 characters in body
Mar
14
awarded  engine
Mar
13
comment why do engines have so much unused horsepower?
In all honesty, this is a classic case of comparing apples to hand grenades. Imagine pitting a Camry against the mission requirements of a HMMVW and then comparing fuel efficiencies. I'm pretty sure I can penetrate the side of a Camry with a BB gun or a thumbtack.
Mar
13
answered why do engines have so much unused horsepower?
Mar
12
comment Will higher octane fuel improve gas mileage?
@Earlz, yes, I would conclude that that 1 mpg difference is arguably within the measurement error bounds.
Mar
12
comment Will higher octane fuel improve gas mileage?
The first sentence is unclear: are you stating that your vendor includes less ethanol in the higher octane blends? If so, how do you know? Adding ethanol to gasoline actually raises the octane of the resulting mixture. The lower energy density does imply reduced mileage on a single tank given identical driving conditions, vehicle, driver, weather, etc. However, the OP was asking if octane alone was sufficient to raise mpg.
Mar
9
reviewed Edit suggested edit on 2002 Mercury Cougar lost all forward gears: do I have a bad torque converter or solenoid pack?
Mar
9
revised 2002 Mercury Cougar lost all forward gears: do I have a bad torque converter or solenoid pack?
Better title question
Mar
9
reviewed Approve suggested edit on How do I resolve error code P1135 in my Toyota Camry?
Mar
9
reviewed Approve suggested edit on My car stereo does not save radio station presets
Mar
9
reviewed Approve suggested edit on 2010 Sebring maintains speed for about 5 seconds after depressing accelerator pedal
Mar
8
comment How to fix freezing locks
+1 Hand sanitizer is a good tip. In theory, you could coat your key in the sanitizer and use that as the delivery mechanism for your adhoc lubricant.