Redlining the engine
Took mine to redline today coming off an on ramp. Haven't done it but once since I have owned it and figured since I just changed the plugs and coils, eh why not. It's really hard for my color blind self to see the well what to me is a faint dull red that seems to start just before 7k on the tachometer. If it didn't touch 7k it was most assuredly at 6.8k before shifting up a gear, everything was smooth. It did have some what to me sounded like top end noise initially which was maybe 5-10min of run time at low load to idle before that, there was a rattle of sorts sounded like just one lash adjuster, follower or whatever? which I know they need to be adjusted... once I had been on the road for a good half hour or more I did it again and smooth and quiet that time, no rattle... so I figure the heat by that time had expanded the metal enough that the clearance closed up some. Eventually I'll pop everything off again and get the valve cover off, new gaskets and all that and adjust them.
Last edited by MeanMan; Feb 17, 2026 at 09:00 PM.
Regardless of what or how you drive, keeping a record of your fuel economy can serve an important function (outside of being a numbers nerd, which I am).
Once you have driven your car for a while, you build a sense of what sort of fuel economy it should return -- on a long highway trip, in the winter, on your regular commute, or whatever.
If you see a big discrepancy from your expectations based on the driving you did for that tank of fuel, that is a potential indicator of some sort of problem.
It takes only a few seconds to calculate your fuel efficiency at the pump. If you want to go full-on accountant mode, it takes maybe a minute (total) to record your mileage on the receipt and then enter the mileage and gallons used in a spreadsheet once you get home. Not a lot of work for an important piece of data about the health of your car, and certainly not *Nothing* for a car guy/gal who cares about keeping their car in good running condition.
Once you have driven your car for a while, you build a sense of what sort of fuel economy it should return -- on a long highway trip, in the winter, on your regular commute, or whatever.
If you see a big discrepancy from your expectations based on the driving you did for that tank of fuel, that is a potential indicator of some sort of problem.
It takes only a few seconds to calculate your fuel efficiency at the pump. If you want to go full-on accountant mode, it takes maybe a minute (total) to record your mileage on the receipt and then enter the mileage and gallons used in a spreadsheet once you get home. Not a lot of work for an important piece of data about the health of your car, and certainly not *Nothing* for a car guy/gal who cares about keeping their car in good running condition.
I am writing down record of every fill old-fashioned way with pencil into a notebook at pump. A habit inherited from my dad. Only seldom do I calculate the consumption, because the info on the dashboard is close enough to show any problems. Like dragging rear brake.
I’ve been doing this with every car I’ve owned since 1976 (59 VW Bug) 25hp and 25mpg.
Between my bikes and cars, recording maintenance items on a small notepads is a valuable resource.

Last edited by Fit&Furious; Feb 23, 2026 at 11:31 PM. Reason: Added pic
That's about 90% to do with how often you change the oil. When an engine is taken care of, it shows under the valve cover. The other 10% is PCV system design.
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