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Perhaps what we see is that most of the piston sealing is done by 100 miles (give or take), the time period where hard driving or abusive driving should be avoided is 600-1000 miles (give or take), but engine wear continues and tolerances open up on engine and drivetrain for up to 10,000 miles...

I have seen that too, many do that .

That was part of the reason for my question , as I see people claiming to make more power with their cars after a certain mileage - like 7-10k miles. You are right Patman many of the long term tests show cars getting a bit quicker compared to brand new. I guess tolerances loosen up over...

My owner's manual describes how to drive for the first 1000 miles, which it describes as break-in. Personally I think that is a long time . I see some engine builders load up an engine for about 20-30 minutes at medium load, and then they start doing full power runs on dynos after that.

If you had to estimate a certain approximate mileage when full engine break-in is complete what number would that be ? At what point does the engine make maximum power, with rings fully seated, and engine wear starts to decrease ? Planning to dump the factory fluid on my car earlier than...

I had one of those Civics in 2016, my engine was producing oil , lol, about halfway through the OCI I would need to drain the oil as it was overfilling so much due to moisture and fuel. This was before the apparent "fix" Honda came up with, they did the recall fix on my car but it didn't...

If I move away from Amsoil 5w20 on future changes , I might stick with Amsoil and go with 0w30 . I only have one oil change a year given the mileage I drive. Some of the OTC oils that have gone to Euro or emissions protecting formulas seem to be down on additives. I understand the reasons...

Yes absolutely, that will be my first oil change once I dump the break-in oil. The replacement for my 2nd oil change and long term use will be the decision to make. Thanks

75w110 worked well in my Honda S2000 that called for SAE90

That's the kind of answer I need, lol, very good , thank you. I just read that everyone invests a lot of time and money on UOA's and then you turn around and read opinions that UOA's don't really measure the real wear of an engine, blah , blah , blah, so facts are hard to come by...

This forum would have very little exchanges of questions and answers if people did not include beliefs and opinions in their selection of motor oil. Also the facts are never really 100% , there is always an interesting spin on what people report as facts. I like asking questions and...

Thanks for the added information and there are many components to this application as you noted. I will search up HPL, I am not familiar with it, and being a new member here I have not researched it up to this point in time. I am ultimately looking for a long term oil to use so the more...

I agree, thank you.

well yes that is true. But I also wanted to note how my driving conditions factor into the entire comparison. It is thin vs. slightly thicker, but the vehicle and how it is driven is also part of my question. Many owners of this vehicle push it to its limits and many people end up on a...

Thanks Patman, I think I can likely keep the car out of operation for next winter. I brought it home a few weeks ago and I've had to move things around as my garage is super tight and jammed with crap. I did take it out to bed-in some new brake pads I swapped in , and got the oil up to...

Thank you for all of the replies on this. Yeah my light driving conditions made me wonder if 5w20 would be almost as good as a 0w30. The car will only be lightly driven, and my track days are behind me. Our climate can get pretty hot for about 2 months of the season, spring and fall...

Well I don't know what pleases me, I know that I have a supply of oil right now to get me through most of the 2025 driving season, so I will use it up. I do want to weigh my options for the 2nd oil change interval though, hence my other post. Thanks for the replies.

good point, Amsoil has a lot of small print on their products, I do need to check that more closely.

Tell what ?

I do have an extended warranty , but I'd like to go with 5w20 over 0w20 for the improved NOACK numbers on the Amsoil product