Moon
Platinum Member
- Joined
- Feb 4, 2002
- Messages
- 908
- Location
- SE Ohio, Meigs County
- Tractor
- Kubota L3010HST R4's, Scag Wildcat ZTR, 61
I'll admit it. I'm confused.
Got a new car last year. It has an onboard computer that does all kinds of calculations ... avg. milage, number of miles before you'll run out of gas, real time milage (updates every second to show what your milage is at that given moment) and more that I can't remember now.
So, when I bought it new I was getting 24mpg according to my onboard computer. The car is a 6 cyl toyota and this was right in line with what I expected. At 10k miles I switched to synthetic. My milage didn't change right away, but after a few weeks I noticed it was up to 27mpg. And it kept cliimbing. After a couple months of running synthetic I was at 29mpg. Pretty cool.
Then I posted something about this in one of the threads mentioning that I had witnessed my milage increase with the change to synthetic. Someone asked if I had double checked the figures manually. I had not. Now, I've double checked the figures and I'm baffeled. By my calculations I'm gettting 24 mpg. My onboard computer is still saying 28mpg (yea, it dropped from the high of 29 ...I suppose it depends on driving conditions).
So my onboard computer says one figure and I manually calculate another. I've double checked this on 3 seperate tankfulls. I've reset my trip meters (both of them) but it does not appear to affect the way the onboard computer calculates the milage.
So, I do believe my milage went up with synthetic. But my onboard computer is not calculating the number as I would expect. So I'm confused.
Has anyone else experienced this iregularity with your onboard computers mpg calculations?
Thanks,
Moon of Ohio
Got a new car last year. It has an onboard computer that does all kinds of calculations ... avg. milage, number of miles before you'll run out of gas, real time milage (updates every second to show what your milage is at that given moment) and more that I can't remember now.
So, when I bought it new I was getting 24mpg according to my onboard computer. The car is a 6 cyl toyota and this was right in line with what I expected. At 10k miles I switched to synthetic. My milage didn't change right away, but after a few weeks I noticed it was up to 27mpg. And it kept cliimbing. After a couple months of running synthetic I was at 29mpg. Pretty cool.
Then I posted something about this in one of the threads mentioning that I had witnessed my milage increase with the change to synthetic. Someone asked if I had double checked the figures manually. I had not. Now, I've double checked the figures and I'm baffeled. By my calculations I'm gettting 24 mpg. My onboard computer is still saying 28mpg (yea, it dropped from the high of 29 ...I suppose it depends on driving conditions).
So my onboard computer says one figure and I manually calculate another. I've double checked this on 3 seperate tankfulls. I've reset my trip meters (both of them) but it does not appear to affect the way the onboard computer calculates the milage.
So, I do believe my milage went up with synthetic. But my onboard computer is not calculating the number as I would expect. So I'm confused.
Has anyone else experienced this iregularity with your onboard computers mpg calculations?
Thanks,
Moon of Ohio