XPost: alt.home.repair   
   From: bowman@montana.com   
      
   On 03/25/2021 12:26 PM, Ed Pawlowski wrote:   
   > On 3/25/2021 1:05 PM, mike wrote:   
   >   
   >>   
   >> (My personal opinion is twice a year for dino & once a year for synth).   
   >> (My personal opinion is a filter change roughly about once a year.)   
   >>   
   >> For me the motor oil buying choice is simple.   
   >> 1. Price (about $1.50/qt for good dino juice, about twice that for synth)   
   >> 2. Quality (any API that meets or exceeds the spec in the owners manual)   
   >> 3. Viscosity (any SAE range that meets the spec in the owners manual)   
   >>   
   >> In practice you'd have to go out of your way to find an oil that doesn't   
   >> meet the spec in the owners manual so it eventually boils down to price.   
   >>   
   >> Price changes over time but currently it's $2.50/qt for Costco fully   
   >> synthetic (API SP, SAE 5W30, Dexos 1 gen 2) in sets of two five quart   
   >> jugs.   
   >>   
   >> It's harder to find a spec for oil filters but like oil it matters   
   >> less when   
   >> you change often (defined by me as being about yearly which is ~12K   
   >> miles).   
   >>   
   >> I've seen many oil filter teardowns so I avoid Fram and STP oil   
   >> filters and   
   >> I know that only a few manufacturers likely make most oil filters anyways   
   >> and I do know that the Napa Gold (also Wix) are usually the best in those   
   >> teardowns and that the Purloators at Toyota turn out to be reasonably   
   >> good   
   >> too (as do the AC Delcos).   
   >>   
   >> The Walmart K&N, SuperTech, Mobil 1 and Fram often come out   
   >> differentially   
   >> as do the Bosch at times.   
   >>   
   >> Mostly I look for 30um at 99% or even 20 micron if I can find it but   
   >> not all   
   >> boxes say and there's no spec that I know of for oil filters like   
   >> there is   
   >> for oil that help compare them (they're all good enough for my cars   
   >> except   
   >> maybe Fram).   
   >>   
   >> If you know of a spec that's printed on all oil filter boxes for   
   >> comparison   
   >> sake like there is for oil that would be helpful for sure.   
   >   
   > Pretty much agree with your opinion.  With a turbo, I'd go with   
   > synthetic as they are subject to some high RPM.   
   >   
   > No matter what you or I think or have experienced, there is always the   
   > guy that says "my car runs a lot smoother or Brand Y over Brand X."   
      
   In the motorcycle forums the usual reply is 'Sweet Jesus! Another   
   frigging oil thread!'   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)