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The service manual for my car says to replace the oil and filter every 15,000km (9300mi) or one year after the last change. I don’t drive the car much so the mileage is well below 15,000km when I reach one year after the last change. So I have been replacing the oil every year but I wait until...

I'm servicing a Honeywell zone valve on a hot water heating system. I need to re-grease some brass gears that are part of the valve assembly. The heating system operates at 140 F, and the valve has a little motor inside it, so the grease will need to withstand some heat. But the valve doesn't...

I'm shopping for tires for my car. The factory tires are: Continental ContiProContact 225/45/R17 91H The tires I am considering are: Continental ExtremeContact DWS06+ 225/45/ZR17 91W Since the ExtremeContact is a high performance tire I am concerned about the ride quality. What can I expect it...

I have an Air King 9155 window fan that I have been using during the summer months for the past five years. The motor has spherical bushings, which are a bronze colour and might be sintered, but not sure about this. The motor also has three operating speeds and is 1/6 HP. Several weeks ago the...

I'm thinking about buying a jug of old Castrol Edge 0W-40 from a second-hand goods website. Here are photos of the front at back of the jug: I believe this is old stock. From what I can make out from the photo of the back it appears to say "Made in Belgium". Is this oil better or worse than...

Thanks to the respondents to my other thread for recommendations on a motor oil for my 2013 GTI. In this thread I’d like to ask about the primary factors that I should consider when selecting motor oil in the future. I assume the most important factor would be ensuring that the oil meets the...

I have a 2013 VW GTI with the 2.0T engine (gasoline engine). I'm looking for a VW 502.00 approved oil for my next oil change. Most (if not all) brands on the market that are 502.00 approved are also 505.00 approved. However, there are also brands that include the 505.01 approval for VW's...