Hahahaha

That was from track abuse FYI. Ran great till I was pushing to beat a 90s Camaro [emoji1787]. I won... then I lost

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Savage.

The big difference for me is that for driving in our semi-rural neighborhoods, the difference between th 4.1:1 in the FR-S and 4.3:1 in the 86 means I can use 6th gear at 40 mph for gentle cruising instead of 5th gear. On my FR-S. the car would "lug" if I tried to engage 6th below for 40 on any kind of gentle uphill, while on the 86, that speed is ok. Clearly for good acceleration or steep hills, I would be dropping down at least one gear (or more).

The final gear change is indeed noticeable even during "regular" driving. I spend most of my tie on the highway at little over 70 mph and am now running at at least 3K more rpm than before. Be interesting to see what my mileage is like when done break in.

Summary of My Break In...
 

I think many have covered it. Take it easy and make sure to let the engine warm up. And, vary your driving for the first 1000 miles -- i.e., don't take it on the highway for a long drive at a constant speed just to get miles on it.

It was painful, but this was my approach. I stayed under 4000 RPMs for about the first 750 miles. From 750-1000 miles, I occasionally rev'd slightly higher (maybe 4500 RPMs with a couple of blips slightly higher to probably a max of 5000 RPMs). At 1000 miles, I changed the oil (Motul) and started to take the revs higher to 5000 to 6000 RPMs, but not all at once. It seemed to run a bit smoother after the Motul change. As a side note, I found that they overfilled the oil from the factory. And, then I gradually got on it more through to 1250 miles. After that, I just put my foot in it whenever.

I'm at 3000 miles now and it's a beautiful thing. I drive it pretty hard. I checked the oil level yesterday and it was perfect to the fill-level I measured when I changed it at 1000 miles. So far, so good.

I'm not sure if that's the absolute right approach, but that's what I did.

How did you get that particular number?

I use 170F oil temp as my green light to redline as well. Before that though casual acceleration shifting around 3800-4000rpm.

3k?
Do you mean 5% higher rpm or 150rpm higher than before when cruising at 3k now 3150rpm?

With a 4.3fd 6th gear at 40mph is 1800rpm. I would not go below 2k in any gears besides 1-2. And I would not do any acceleration even the slightest bit below 2500+ rpm preferably 3k+ rpm in any gears besides 1-2. But that’s just me.

It’s a combination of getting the oil hot enough to start lubrication well and getting the engine up to an operating temp where the clearances between engine internals are getting in their sweet spot. 165F is probably fine as well, 170F is pretty commonly accepted as a safe oil temp to start romping on it.

Having not driven a 2017+ model, i bet the shorter gears are nice for city driving. I often feel 2nd is too short and 3rd too tall so i end up bouncing between these two gears. Not that i really mind, considering these gearboxes are a lot of fun to shift.

LOL ya I meant 300! Woke up in the middle of the night going "did I say thousand in that post" but site has been down so I couldn't fix it. I am running about 300 (hundred) RPM over what I used to.

They are!

Your entire approach is backwards. You should focus on the right RPM for each gear depending on how hard you want to accelerate, not the speed. Watch the tachometer rather than the speedo, adjusting to keep yourself within a comfortable margin of the legal speed limit.