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Pulled the Denso Iridium TT spark plugs from my 2008 Subary Legacy 2.5i (naturally aspirated) while trying to diagnose what felt like an ignition problem after some major engine work. The issue ended up not being the plugs but I was "intrigued" by the wear pattern on the platinum ground tips of...

Must admit I was surprised by the result: https://www.youtube.com/watch?v=TJsV2ORMsms

My local Canadian Tire had DOT4 in American, European, and Asian variants. Does anyone know what could possibly be the difference between these three (besides the colour of the label?) I wasn't aware of continental differences in DOT4 brake fluid.

I noticed that a sealed bearing on a recently installed timing belt idler sprocket had leaked some of its grease. It was in service since February of this year. I don't know anything about sealed bearings so I was wondering if this is normal? The idler still spun alright. Smooth but maybe (ie...

I was walking through one of local Walmarts (in Vancouver) when I noticed the following battery on the shelves: EverStart Maxx AGM Battery It grabbed my attention since it didn't have the octagonal caps that JCI batteries are known for. According to the link it has "Power-Perform(tm) Plates"...

I replaced the NGK G-Power plugs that I have been running in my car (2005 Subaru Impreza RS) for ~33k kilometers (~4.5 years) and was surprised to see the centre electrodes on two of the four plugs worn as shown in the following photo: Because of the DIS ignition and the fact that G-Power...

A couple of years ago I replaced my Subaru's factory ATF with Amsoil ATF. The factory fluid still looked good but the shift quality had deteriorated over a period of just one year so I decided to do a cooler line flush with Amsoil. The Amsoil fluid (original thicker stuff before they...