[JazzleSAURUS]

Originally Posted by Somerandom18

My ex bought a Buick with the legendary l67 engine naturally aspirated. Widely known as one of the most bulletproof engines ever made. The previous owner babied the car it's entire life. Had under 100k miles (86k rings a bell). Maintenance followed to the T. All invoices and records as proof. She had it maybe 3 months and it spun 2 rods on a road trip. (All fluids changed immediately before being out up for sale).

There's is and always has been a trend with babying cars.

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90k on my Forester's built motor, every time she's driven she is driven to the limiter multiple times, 24psi of boost is achieve, and I've grabbed rubber in at LEAST 2nd gear, often 3rd. She's my outlet for power, and any problems she has I associate to the 195k on the clock, (supporting components.)

My 86 Celica GT-S was driven to 215k on the original clutch, engine, everything but starter and alternator. Bone stock. Redlined multiple times to and from work.

I'm a firm believer that cars are meant to be driven - hard. Very few cars come to me that were being driven good and hard and have failures. I see low mileage turbo/piston/clutch failures all the time where the owner was 'babying it as usual' and 'not taking it to redline - I've never done that!'.

That said, lots of cars are making too much power for their supporting mods and have a failure. That's a different issue.

Properly built cars that are driven hard are a different story. One of my customer cars is a stock block 185k 2010 WRX. Every single supporting mod in the book and protune done by 10k miles, and he's making 330whp. He only swings by for maintenance, and for me to inspect the mods/ensure everything is as expected.

(AOS, full exhaust including equal length header, TGV/EGR/Airpump deletes, dyno tune, bushings galore, ACT HDSS.)