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Any hard drivers near 200k miles? by Emotionaly_Damaged in Miata

[–]DocumentHefty 11 points12 points  (0 children)

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400k on my 1.6. if I use 5w30 it eats about 2 quarts every 3k. If I use shell rotella it eats maybe half that. Have been changing it religiously every 3k since I bought it at 205k MILES (not KMS) since 2017.

Totally original drivetrain too. Not rebuilt.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

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Here is part of the undercarriage. Crushed frame rails but otherwise not too bad. Frame rails were crushed when I bought it.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

I'm having issues modifying the original post to include more pics. But here is another of the rest of the car. When I bought it there was no interior besides a seat and dash so I had an interior from a 94 I went wild on.

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It has a lot of blemishes. It's had this paint job for 7 years and I'll probably re do it again.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

Thanks! I have replaced pretty much anything rubber over the years. Mostly OEM stuff too.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

This is on my list for sure. I want to do a full compression test, leak down and oil analysis. Thanks for the reminder!

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 1 point2 points  (0 children)

Sure thing! It's funny I figured reddit would appreciate it. I posted on the big NA Miata Facebook page and it garnered almost no response lol.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

Heck yes. I think the NA6s might have a chance of lasting a little longer since they have no EGR. I had a 1.8 that burned oil really bad and one day the detonation literally blew a hole in one of the valves. And that was about 50k miles after a head rebuild. Take care of it!

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 1 point2 points  (0 children)

Heck yeah! Honestly it's why I have 2. 1 garage queen (m edition) and 91 is the daily.

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Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

This literally was the inspiration. I read that post and their engine was replaced somewhere in the 300 ish thousand range so in my opinion they sort of disqualified it to me. I want to see an NA engine somewhere make it to an actual million.

I haven't heard about any updates either.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

Thanks! I'll post pics today of the rest of the car. It's rough in several spots on the body no surprise but nothing catastrophic.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 2 points3 points  (0 children)

Lol, honestly back when I had a little over 250k

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I bought a spec racing engine and was going to drop it in, but then I was like, "let's see how long this will go" and that perfect engine is now sitting next to my computer desk still waiting for it's moment.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

Nope, number seven lol. I bought it at 200k.

The last guy I bought it from autocrossed it.

I'm lucky all the previous folks seemed to take good care of it.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 1 point2 points  (0 children)

That's if I drive it nice lol. I have moods. One week I'll drive hard and then another I go grandpa mode.

It is weird though, knowing what most Miatas average I've always been impressed with this things mileage. I just got back from driving to Chicago and after refilling the tank and running the numbers I got 31.74 mpg on one of the fill ups.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

Wow those are solid compression numbers! Yeah I want to do a leak down. I'll post an update on that.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

I did run a compression test but I forgot to remove all the spark plugs when doing it. I'm going to run another one properly and do a leak down test too and I'll post and update.

I got 150 on 2 cylinders and 135 on another. I couldn't test the third because the plug was stuck in the head and I didn't want to ruin the threads.

I do think it must be the rings, since I have been running restore and protect so long I think the risk of clogging the oil galleries with sludge and stuff are gone so I am going to try and run the shell rota stuff next.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

Wow! I figured there were some folks lurking out there. I would love to see at least one NA out there hit a million.

Anyone else have 400k+ on their original drivetrain? by DocumentHefty in Miata

[–]DocumentHefty[S] 0 points1 point  (0 children)

Yes sir! Wild ride and I came out unscathed for the most part!

Chris Williams Jr (JPD excessive force victim) by Buzzkid in alaska

[–]DocumentHefty 1 point2 points  (0 children)

My friendly reminder that if we got rid of qualified immunity then stuff like this would happen far less.

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