Labor time published in this guide (except for a few Repair Operations) are based on studies of the actual time required to complete the operation. No connection with the technicians' wages is implied since they are dependant upon the dealer pay plan in use.

Time allowances published have been determined by performing the operation a sufficient number of times to establish an average time or to determine that a fair and equitable time has been developed. Standard technicians' hand tools are used unless specified in the service procedure. Dealer essential and available tools are used in performing the time studies. Procedures outlined in Service Manuals, other service publications, and good shop practices are used as a guide when performing the work necessary to establish time allowances.

The time allowance includes the actual time required to perform the operation plus an additional allowance to provide for operating variables such as variation in vehicle age and condition, obtaining parts and personal time. These time allowances do not include time to remove and replace special equipment other than manufacturers options.

A dash in the labor time field indicates there is not a specific time assigned to the labor operation number. These labor operations are for claim processing use (examples: sublets, MIC, net amounts, AC Delco, etc).