Automakers do market research. Customers tell the market researches they want gauges instead of idiot lights. Automaker puts (accurate) gauges into cars. The 90% of customers who just want a transportation appliance freak right out that their oil pressure varies with engine speed and temperature, and that coolant… » 2/27/15 10:37am Friday 10:37am

Silver tube is ducting to probably the outside of the exhaust (this is the McLaren) so it doesn't cook off the bodywork. Race cars spend more time under load than street cars, so more heat. Other possibilities include electronics cooling or transaxle cooling. » 2/25/15 11:13am 2/25/15 11:13am

The 2015 F150 is the highest-volume application for primary aluminum bodywork and body structure (as opposed to individual panels such as hoods or decklids on a primarily steel car) up to this point, plus it's brand new and the dealer/body shop techs are fresh from getting trained up on the repair techniques - and… » 1/27/15 2:13pm 1/27/15 2:13pm

Oddly enough, the sequence of events is often Two: there's a leak somewhere in the system; Three: it needs more refrigerant (because it all left via the leak); One: the compressor isn't working (because the low-pressure switch detects the lack of refrigerant and won't let the compressor engage and self-immolate);… » 1/20/15 3:32pm 1/20/15 3:32pm

Once upon a time, I received on a monthly basis, copies of Road & Track, Car and Driver, Motor Trend, Hot Rod, Car Craft, Grassroots Motorsports, Automobile, 4Wheel & Off-Road, Diesel Power, Racer, and Muscle Mustangs & Fast Fords, along with SportsCar from the SCCA and, weekly, AutoWeek. » 1/16/15 3:56pm 1/16/15 3:56pm

Disclaimer: I (briefly) worked on the current GM mild-hybrid powertrain system (Malibu & LaCrosse) during 2008. Exactly one part I directly influenced made it to production: a small stainless-steel coolant tube pressed into the MGU. My dotted-line boss loathed it (he thought it could be used as a handle for the engine… » 1/16/15 2:46pm 1/16/15 2:46pm