Find a Highly Visited Website - The more reviews you find posted will dilute any reviews that have been manipulated by the companies themselves.
Find a Reputable Review Website - There are many sites with reviews, but its important to seek out the ones that are more reputable. Its best to find one where the reviews are somewhat monitored or more difficult for people to manipulate unethically.
Check With The BBB - You can always check with the Better Business Bureau to see if there have been any reports of auto repair companies in your area overcharging or engaging in any fraudulent behavior.
Surprisingly, Not All Reviews Are Negative - Once consumers get in the habit of posting reviews online, most of them end up being positive. The positive reviews are as helpful as the negative ones. It gives you a more balanced picture of the kind of service the company provides.
Some of The More Reputable Review Sites Charge Monthly Fees - Free review websites are easily manipulated in favor of the companies being reviewed. Paid review sites are able to staff the personnel to monitor and regulate the reviews to make sure that they are legitimate and honest reviews. Many people are beginning to see the value in a membership to a review website.