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I have a 2012 Mazda 3 2.5l with a 6 speed manual that is right around 75k miles. According to the manual it calls for 75w-80 oil, which as I've discovered is not very common. I can get Redline on Amazon for just over $18/qt, Mazda from the dealer for $28/qt or possibly buy Ravenol directly for...

I made a similar post about my personal vehicle being brought out of quasi-storage. This one is a bit different. Today at work I was told to check on a couple of our work vans that have not been touched since Feb 2020. I've only been here for about a year, and until today our dept wasn't...

Next month I am bringing my Mazda 3 out of "storage" where it has been since January of this year. This wasn't a full storage as I would make a monthly trip out to where it was being stored and take it on a 10-15 mile drive. Right before I stored the car I changed the oil and filter. It was a...

I just had the head in my 03 Ford Focus SPI replaced with one that won't have the dropped valve issue. The mechanic put some Chevron 5w-20 in it and told me to put 500 miles on it and then change to whatever I want. I'm planning a trip next month in the car that will put about 2000 miles on it...

I have an 03 Ford Focus 2.0 spi engine at 100k miles. A couple changes ago I changed from Motorcraft 5w20 to M1 Syn High Mileage 5w20. I am wondering if I could introduce new problems going to PP or PP ultra? I know high mileage has certain conditioners that can swell the seals, and I wanted to...