## 4 Results and Discussion
### The Test Results of Cuffs at Temperatures from 4 \({}^{\circ}\)C to 20 \({}^{\circ}\)C  
The test results of the cuffs at temperatures from 4 \({}^{\circ}\)C to 20 \({}^{\circ}\)C, which correspond to the exploitation conditions in the southern region, are given below. Eight samples of cuffs, of which four were taken from vehicles exploited in the northern region, and four were from vehicles exploited in the southern region, were tested. The results of the number of oscillations to which the samples were exposed, and other relevant data, are given in Table 5.  
Table 5 shows that the termination of testing occurred for a sample from the southern region because the number of oscillations was much larger than for the samples from the northern region, and no cracks or damage emerged on the cuffs. It can be observed that, for the samples from vehicles of the same manufacturers with approximately the same number of kilometers travelled, the cuffs  
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Sample Number**} & \multirow{2}{*}{**Vehicle Brand**} & \multirow{2}{*}{**Region of Use**} & \multirow{2}{*}{**Number of Kilometers**} & \multirow{2}{*}{\begin{tabular}{c} **Testing Temperature** \\ **Kilometers** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **Temperature** \\ **Kilometers** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **Number of** \\ **Moment of** \\ **Failure [°C]** \\ \end{tabular} } & \multirow{2}{*}{\
\begin{tabular}{c} **Number of** \\ **Oscillations** \\ **to the Failure** \\ \end{tabular} } & \multirow{2}{*}{
\begin{tabular}{c} **Oscillations** \\ **the Termination** \\ **of Testing** \\ \end{tabular} } \\ \hline
1 & Volkswagen & north & 298,485 & 14.8 \(\pm\) 19.4 & 16.9 & 2,599,786 & — \\
2 & Volkswagen & north & 320,489 & 4.0 \(\pm\) 7.9 & 7.9 & 2,666,406 & — \\
3 & Opel & north & 289,583 & 15.7 \(\pm\) 19.0 & 19.0 & 2,986,007 & — \\
4 & Renault & north & 290,241 & 4.5 \(\pm\) 7.6 & 5.8 & 2,819,850 & — \\
5 & Volkswagen & south & 309,587 & 17.2 \(\pm\) 19.0 & 19.0 & — & 9,014,279 \\
6 & Opel & south & 281,456 & 16.8 \(\pm\) 19.0 & 19.0 & — & 10,108,004 \\
7 & Renault & south & 244,327 & 14.6 \(\pm\) 19.5 & 19.0 & — & 11,931,162 \\
8 & Renault & south & 237,327 & 15.2 \(\pm\) 19.7 & 19.0 & — & 8,331,308 \\ \hline \hline \end{tabular}
\end{table}
Table 5: The results of testing cuffs at temperatures from 4 \({}^{\circ}\)C to 20 \({}^{\circ}\)C.  
from vehicles exploited in the southern region survived three times more oscillations than that of the northern region.  
The Test Results of Cuffs at Temperatures from \(-4\)\({}^{\circ}\)C to \(-20\)\({}^{\circ}\)C  
The test results of the cuffs at temperatures from \(-4\)\({}^{\circ}\)C to \(-20\)\({}^{\circ}\)C, corresponding to the exploitation conditions in the southern region, are presented below. Four samples of the cuffs from the northern region, and three from vehicles used in the southern region were tested. The results of the number of oscillations to which the samples were exposed, as well as other relevant data, are given in Table 6.  
After analyzing Table 6, it can be seen that, unlike the previously described testing, damage to the cuffs that had been exploited in the southern region did occur. This is the same as in the case of the previous group tested. It can be observed that more than double the number of oscillations occurred before the failure of the cuffs that were exploited in the southern region compared to cuffs the other region, taken from vehicles that had approximately the same number of kilometers travelled and were made by the same manufacturers.