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Realized this pretty quickly about this situation after posting. Thanks for the laugh.

I mean I didn't bother to warm it up by driving it or putting a load on it. You are correct, the engine is mostly warmed up after 20 minutes or so. I did that about three times, so about 1 hour or so total of running 'cold' with no load.

EJ22 Subaru Legacy using M1 FS 0w40. Just changed the oil last week. I steam cleaned the interior and overwet the floor carpeting. Due to cold and wet weather and lack of a warm garage, my only option to dry the carpets was to idle the car with the heat blasting. I estimate I probably idled...

This is a main thing I think about. Sometimes seeing that gauge drop so low at traffic lights worries me. Would be open to something nicely thicker at operating temp. The rebuilt engine reads about 7-8psi at idle, the older one reads a little less, measured at the block... Any particular...

I change every 3000. The new engine got changed at 500mi on the break in oil, now at 1500 and going to change again soon. Only have changed it myself once so far. Engines are both stock, I drive them both hard and normally street only. I haven't heard of anyone using the M1 0w40 FS in these old...

Thanks, but do you have any reasons why? You said you don't own one, did you own a similar engine or not at all? The 7m is a particular engine. It is an over 30-40 year old design...

I own two MK3 Supras, 1988 & 1989. They both have the 7MGE n/a engine. Been using M1 EP 10w30 in both. One is a new engine rebuilt in January. I've ran the M1 since the first 500 mile change. Both use some oil between changes, enough to top off occasionally. Considering going up to a 40 grade...

I am very curious about the 0w40, however some of my engines use a little oil which according to my research makes the 0w40 unsuitable for them because of the SAPS content. I'm still not quite educated on this, so I need to do more research. It is on my list of things I want to try out for sure...

On many vehicles specifying an SAE 30 multigrade, 5w30 (as opposed to 10w30) used to not be recommended for anything except very cold places. Has this changed with the advent of modern synthetics? I own three 1988-89 Toyotas (7MGE, 22RE) and a 1997 Subaru Legacy with a rebuilt N/A EJ22. All of...