Last post on Jan 10, 2010 at 4:01 AM
You are in the Chevrolet Malibu
What is this discussion about?
Chevrolet Malibu, Safety Technology, Steering, Suspension, Tires, Sedan
#12 of 14 Re: Best tire opinion for Malibu [e_net_rider]
Jan 08, 2010 (7:08 am)
Added insight. I was surprised at the numbers that came in for your tire.
I compare the reviewers as well as test results because the test results seem to all be from a BMW and I don't drive a BMW.
When looking at the test charts you might note that they only compare tires in the same grouping. Passenger tires with other passenger tires and the one I'm investigating, a grand touring with other grand touring. The one I'm interested in posted higher numbers for each test than the comfortread.
#13 of 14 Re: Best tire opinion for Malibu [e_net_rider]
Jan 09, 2010 (7:15 am)
I was surprised at the numbers that came in for your tire.
If you are talking to me, about Goodyear Assurance ComforTred, and
refer to the TireTrack reviews:
Look what you have there, on the scale of 1 to 10 -- just three reviews:
4.5, 8.7. 9.5.
I don't think any person with scientific or engineering background
will try to make a meaningful conclusions on the basis of that sample:
too small, too varying. Throwing away that 4.5 seems like a must, as
a "measurement error".
On the other hand that above number show that with the same tire the
assessment can vary wildly -- there is not objective metrics to
measure "the feeling".
When looking for a tire replacement this fall, I did read a lot of
reviews. That reading was useful in one sense -- to come not to
believe them. If you never drive the same car with different tires
with the similar mileage on them, you can't compare your tires with
others. I have three Bu's, all with different tires, and I think I
have a reasonable basis for judgement, and it is:
* The tires may wear differently, but I will not know until they are
* The tires are indistinguishable, in all practical ways, for a
person with normal (for Bu) driving patterns. (FWIW, I usually
drive in the left-hand lane).
ABS and traction control do make a difference -- one of my Bu's
doesn't have it, so I know.
#14 of 14 Re: Best tire opinion for Malibu [malexbu]
Jan 10, 2010 (4:01 am)
Actually you need to hit the reviews button and then filter by Chevrolet. That will yield 56 reviews and several are for Malibu. I'm not sure what that low score we saw was about. Maybe he had other problem with vehicle, grain of salt, and near 50K is not bad for a tire that performs under all conditions very well.
The test results are done by company, under tests button, and hoping they are a bit more objective than reviews, which are purely subjective. As stated earlier, to get tests for touring or grand touring you have to look up tests on that tire. The one I looked at in that category was the Michelin Primacy MXV4.
Where I run into a problem is that different sites show a different size as the OE for 17" wheels. Some say 215/55R17, others show 225/50R17 as the OE. Which is why I put up the survey for TPC. According to GM, the tests they do are to find the single best tire for your vehicle and that is the TPC of your OE tire (found on sidewall). So far I have not located a cross reference showing vehicles and what number or numbers apply. I did find a TPC to tire converter and it shows the tires I have, but many other owners seem to have come with a different tire, so how is it the single best?