I wanted more up-to-date car reliability information that included actual repair rates. So in late 2005 I started getting people together to make this possible. TrueDelta now updates actual repair frequencies, not just dots, four times a year, to track cars closely as they age.

Thanks to the support of AZhitman and this forum, for which I'm very grateful, we've had excellent participation by Infiniti owners. I'm hoping to have quick results for the new M37 and M56--just a matter of getting more owners involved.

Participants simply report repairs the month after they occur on a one-page survey. When there are no repairs, they simply report an approximate odometer reading four times a year, at the end of each quarter.

To encourage participation, participants receive full access to all results, not just those for the new M, for free.

For the details, and to sign up to help out:

Car reliability research

About to start the survey for September, so in a few days it should be clear whether we'll have an initial result for the 2011 M in November. I hope so, but it's going to be tight. Even a few more participants could make a big difference.

To help make this happen:

Car reliability research

(Additional participants also helpful for previous model years.)

We'll have that initial result next month, but just barely. Everyone who has participated--thank you.

More participants remain needed to provide precise results.

Car reliability research

Now 22 signed up. Getting there.

Starting this month we have a new question to measure, as objectively as possible, the severity of a problem. Many people have been asking for reliability stats that weight problems by how severe they are, and once we have enough responses with the revised survey we'll start providing this.

Now 24. Initial stats this month, but more participants remain needed to have the first full stats in February.

We have updated results for the M to include owner experiences through September 30, 2010. Other sources of car reliability information won't cover the months since April until the summer or even fall of next year.

Repair frequencies, in terms of repair trips per 100 cars per year:

2011: 47, about average, very small sample size

2008: 53, about average, small sample size

2007: 29, better than average

2006: 35, better than average, large sample size

We have two additional statistics, "Nada-odds" and "Lemon-odds," to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop.

In the case of the 2006, the percentage with no repairs is about 76, and the percentage of lemons is less than one.

Infiniti M Lemon-odds and Nada-odds

Thank you, once again, to AZhitman, this forum, and everyone who has been helping. We'll have further updates in February and May. With more participants, we could provide more precise information and cover all model years.

To see how competitors compare, and to sign up to help:

Infiniti M35 / M45 reliability ratings and comparisons

I sighed up, will be interesting to track.

Updated results soon, including a full result for the 2011.

We have some new pages that display all reported repairs by problem area:

2011 Infiniti M problem reports

From this page it's possible to select a different model year or specify a problem area.

We have an updated result for the 2011 M based on owner experiences through December 31, 2010. Other sources of car reliability information won't cover the 2011 until the summer or even fall of this year.

The reported repair frequency of 32 repair trips per 100 cars per year is "better than average."

Thank you, once again, everyone who has been helping.

To see how competitors compare, and to sign up to help:

Infiniti M37 / M56 reliability ratings and comparisons

33 owners of the 2011 now signed up. A very good start, but more would enable us to provide better information to everyone.

Car reliability research

We have an updated result for the 2011 M based on owner experiences through December 31, 2010. Other sources of car reliability information won't cover the 2011 until the summer or even fall of this year.

The reported repair frequency of 32 repair trips per 100 cars per year is "better than average."

Thank you, once again, everyone who has been helping.

To see how competitors compare, and to sign up to help:

Infiniti M37 / M56 reliability ratings and comparisons

Updated results in a few weeks.

Additional participants always helpful.

We have an updated result for the 2011 M based on owner experiences through March 31, 2011. The reported repair frequency of 41 repair trips per 100 cars per year is about average.

To see how competitors compare, and to sign up to help improve this information:

Infiniti M37 / M56 reliability ratings and comparisons

Updated stats soon. As always, additional participants would help us provide more precise information.

Car reliability research

We have an updated result for the 2011 M based on owner experiences through June 30, 2011. The reported repair frequency of 49 repair trips per 100 cars per year is about average.

To see how competitors compare, and to sign up to help improve this information:

Infiniti M37 / M56 reliability ratings and comparisons

We have an updated result for the 2011 M based on owner experiences through June 30, 2011. The reported repair frequency of 49 repair trips per 100 cars per year is about average.

Thank you, once again, everyone who has been helping.

To see how competitors compare, and to sign up to help improve this information:

Infiniti M37 / M56 reliability ratings and comparisons

We have an updated result for the 2011 M based on owner experiences through September 30, 2011. The reported repair frequency of 56 repair trips per 100 cars per year is about average.

Thank you, once again, to this forum and everyone who has been helping.

To see how competitors compare, and to sign up to help improve this information:

Infiniti M37 / M56 reliability ratings and comparisons

We have an updated result for the 2011 M based on owner experiences through September 30, 2011. The reported repair frequency of 56 repair trips per 100 cars per year is about average.

Thank you, once again, to this forum and everyone who has been helping.

To see how competitors compare, and to sign up to help improve this information:

Infiniti M37 / M56 reliability ratings and comparisons

We have updated our car reliability stats for the M (on our redesigned site) to include owner experiences through December 31, 2011.

Repair frequencies, in terms of repair trips per 100 cars per year:

2011: 88, worse than average, common problem with Bluetooth and rear shade

Thank you, once again, to AZhitman, this forum, and everyone who has been helping. We'll have further updates in May and August. With more participants, we could provide more precise information and cover all model years.

Especially need more 2012s.

To see how competitors compare, and to sign up to help improve this information:

Infiniti M reliability ratings and comparisons

We should have some stats for the 2012 as well with the next update. Additional participants always helpful.

Car reliability research

We have updated our car reliability stats for the M to include owner experiences through June 30, 2012.

Repair frequencies, in terms of repair trips per 100 cars per year:

2012: 13, better than average, very small sample size

2011: 69, worse than average, common problem with Bluetooth and rear shade

We have two additional statistics, "Nada-odds" and "Lemon-odds," to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop.

2011: 57, < 1

We'll have further updates in November and February. We'd love to provide more precise stats and cover more model years--just a matter of getting more owners involved.

To see how competitors compare, and to sign up to help improve this information:

Infiniti M reliability ratings and comparisons

We have updated our car reliability stats for the M to include owner experiences through September 30, 2012.

Repair frequencies, in terms of repair trips per 100 cars per year:

2012: 22, better than average, very small sample size

2011: 68, worse than average, common problem with rattles, steering wheel trim, Bluetooth and rear shade

We have two additional statistics, "Nada-odds" and "Lemon-odds," to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop.

2011: 58, 4

Thank you, once again, to AZhitman, this forum, and everyone who has been helping. We'll have further updates in February and May.

To see how competitors compare, and to sign up to help:

Infiniti M reliability ratings and comparisons

We have updated our car reliability stats for the current M to include owner experiences through September 30, 2012.

Repair frequencies, in terms of repair trips per 100 cars per year:

2012: 22, better than average, very small sample size

2011: 68, worse than average, common problem with rattles, steering wheel trim, Bluetooth and rear shade

We have two additional statistics, "Nada-odds" and "Lemon-odds," to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop.

2011: 58, 4

We'll have further updates in February and May. We'd love to provide more precise stats and fully cover all model years--just a matter of getting more owners involved!

To see how competitors compare, and to sign up to help:

Infiniti M reliability ratings and comparisons

We have updated our car reliability stats for the M37 and M56 to include owner experiences through September 30, 2012.

Repair frequencies, in terms of repair trips per 100 cars per year:

2012: 22, better than average, very small sample size

2011: 68, worse than average, common problem with rattles, steering wheel trim, Bluetooth and rear shade

We have two additional statistics, "Nada-odds" and "Lemon-odds," to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop.

2011: 58, 4

We'll have further updates in February and May. The more owners participate, the more precise these will be.

To see how competitors compare, and to sign up to help:

Infiniti M reliability ratings and comparisons

We have updated our car reliability stats for the Infiniti M to include owner experiences through December 31, 2012.

Repair frequencies, in terms of repair trips per 100 cars per year:

2012: 20, low, very small sample size

2011: 38, moderate

We have two additional statistics, "Nada-odds" and "Lemon-odds," to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop.

2011: 73, < 1

Thank you, once again, to AZhitman, this forum, and everyone who has been helping. We'll have further updates in February and May. The more owners participate, the more comprehensive and precise these will be.

To see how competitors compare, and to sign up to help improve this information:

Infiniti M reliability ratings and comparisons

We've updated our reliability stats for the M to include owner experiences through March 31, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2012 M: 19, low, very small sample size
2011 M: 56, moderate

We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:

2011 M: 65, 4

We'll have further updates in August and in November. The more owners participate, the more comprehensive and precise these will be.

To see how competitors compare, and to sign up to help:

Infiniti M reliability ratings and comparisons

We've updated our reliability stats for the M to include owner experiences through March 31, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2012 M: 19, low, very small sample size
2011 M: 56, moderate

We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:

2011 M: 65, 4

We'll have further updates in August and in November. The more owners participate, the more comprehensive and precise these will be.

For the details, including the descriptions of reported repairs, and to sign up to help improve this information:

Infiniti M reliability ratings and comparisons

just signed up