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Odometer PALINDROMES!!!!!

33K views 311 replies 23 participants last post by  aaronw0813 
#1 ·
Let's see your odometer palindromes! (Sorry, trip meters don't count.)

Here's a few from my 1997 Corolla.




 
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#5 ·
That's fine, but it's a little too easy on a digital odometer that doesn't have a leading 0 (100,000's digit). With all 6 digits on the mechanical odometer you only get 1000 palindromes over 1 million miles, an average of 1 per 1000 miles. On your digital odometer you'll have 900 between 10000 and 99999, an average of 1 per hundred miles.

Do any new cars still have mechanical odometers? Or what were the last cars to have them?
 
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#11 ·
I meant that some trucks probably still had mechanical odos for a few years after the last car did. A lot of times, manufacturers will stop using an engine in their cars, but will continue to put it in trucks for a few more years. All kinds of vehicle parts take their bow, and make their final appearances in the truck line.

I'm also wondering what was the first car to have an electronic odometer.
 
#17 ·
I actually had an '88 Cutlass Supreme, the FWD one, with an electronically displayed digital speedo and odometer which you could switch between miles and kilometers. Luckily got rid of it before the display started malfunctioning...
 
#20 ·
I don't scoff at digital odometers. I only scoff at how easy it is to get palindromes with only 5 digits displayed (when less than 100k miles). Every 100 miles is easy. With 6 digits it's a rare event about every 1000 miles.
 
#22 ·
Interesting, I never thought about this.
You get a palindrome every 100 miles, until 00900. Then you have to wait for 110 miles to pass before the next one, which is 01010. Then you go back to getting one every 100 miles, which ends at 01910. Then it's 110 miles to reach 02020, and back again to the every 100 miles...:headbang::toomuchin
 
#23 ·
6-digit palindromes are of this form: XYZZYX

Over 1 million miles there are 10 ways to match the 1st and 6th digits, 10 ways to match the 2nd and 5th digits, and 10 ways to match the 3rd and 4th digits. This gives 10*10*10 = 1000 palindromes over 1 million miles.

The 1000 gaps between palindromes are:
900 gaps of 1100 miles (example 123321 to 124421)
90 gaps of 110 miles (example 129921 to 130031)
9 gaps of 11 miles (example 199991 to 200002)
1 gap of 1 mile (999999 to 000000)

Bonus points for posting consecutive 6-digit palindromes with a gap of 110 miles.
Super bonus for posting consecutive 6-digit palindromes with a gap of 11 miles like 199991 and 200002.
 
#31 ·
Haha, even all the gauges are reversed in Australia! (Fuel gauge on left instead of right, etc.) Is that true on all models there, RHD vs. LHD?
 
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#32 ·
Noticed it more for 90s models (AE102, SXV10 Camry etc) and older, but not on newer ones - wife's old SXV20 Camry had the same orientation as the US, and her current ZRE182 Corolla is the same as the pre-facelift 3-dial US LE/Eco Corolla sedan, and the ZZT231 Celica I'm pulling the 2ZZ out of is the same arrangement worldwide
 
#34 ·
I-70 in Knightstown, IN


I missed by 7 miles the first one (219912) of a pair separated by 110 miles! :cry:
Somewhere on the PA turnpike, I-76 (Not coming directly from the previous picture.)
 
#35 ·
I-70 in Knightstown, IN


I missed by 7 miles the first one (219912) of a pair separated by 110 miles! :cry:
Somewhere on the PA turnpike, I-76 (Not coming directly from the previous picture.)
I-70 goes right by where I growed up, near the Stillwater River. I used to like to stand on the overpass near my house, facing the direction of traffic in the lane under me. When a semi would come out from under the bridge and I was looking straight down, it was a weird feeling - like the top of the trailer was just below my feet! They were probably several feet below.
 
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