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    New car - 2023 Mazda 3 2.5, same old questions.

    I finally got my new 2023 Mazda 3 2.5 base model after a 6 month production backlog. I've put about 350 miles on it and was planning on changing the factory fill at 1000 miles because no particular reason other than I'm 'old school' and worry about break-in/production debris in my new engine. I...
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    200K mile engine, oil pickup almost sludged closed. Cause?

    So I dropped the leaking (rust through) oil pan on my 1998 Mazda 626 with a little over 200,000 miles and I'm greeted by this oil pickup which is AFTER I sprayed it down with brake cleaner. I was able to use a fine wire brush to gently scrub it off with carb cleaner then soaked it in some strong...
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    Hy-per Lube HPZ212 discontinued?

    Can't find it on the Rislone website and links to the old hyperlube.com just redirect to Rislone, ordered a couple bottles on Amazon and I'm crossing my fingers I get the right stuff. If I do I'm stocking up, if I don't I'll send it back. My understanding is it's a fancy PolyEster oil, really...
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    Worst oil filter locations.

    I'll go first, the above Cadillac 4900 (and probably some other engines in the series) put the can right over the back of the transmission on a brittle aluminum filter housing. If some yahoo overtightened the filter or didn't lube the o-ring then there was a good chance you'd break the filter...
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    Starfire brand motor oil?

    Where I work stocks this brand in bulk, I didn't find a thread about it here but may have missed it since I'm looking from my phone. We used to stock Valvoline but we weren't moving enough volume the past couple years after we lost an employee and pivoted away from doing lots of oil changes and...
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    New GM problems. GM turbo 4 cyl engines and broken vacuum pumps.

    Have a 17 Malibu with the 1.5 Turbo in the shop, symptoms are hard brakes, engine light on with many codes, vehicle stalled at same time brakes got hard. Checked fluids, coolant in full cold range, oil just on the tip of the stick. Added a qt, now 1/2 qt under full. Start engine, yeah brake...
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    2000 Toyota Celica GTS - Oil questions, help, opinions, and experience sought.

    I own a fairly good condition (130K miles roughly) 2000 Toyota Celica GTS (the Yamaha 2ZZ-GE) and it's time for the yearly oil change. I've been using 5W-40 in it for many years, switching between Mobile1, Valvoline MaxLife blend, and more lately Valvoline 5W-40 Synthetic MST or the other 3...
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