set datafile separator ","
set title  "Horsepower"
set ylabel "HP"
#set y2label "Pressure Pa"
#set y2range [40000:102000]
#set y2tics border
set xlabel "RPM"
#plot [1200:2700] "aaa.csv" using 10:3 notitle with lines 1 \
#               , "aaa.csv" using 10:5 axes x1y2 notitle with lines 
#plot "aaa.csv" using 1:3 title "HP" with lines 1,\
#     "aaa.csv" using 1:11 title "RPM" with lines 2
plot "aaa-0.csv" every :10:110 using 11:3 notitle  with lines 2, \
     "aaa-25.csv" every :10:110 using 11:3 notitle  with lines 3, \
     "aaa-50.csv" every :10:110 using 11:3 notitle  with lines 4, \
     "aaa-75.csv" every :10:110 using 11:3 notitle  with lines 5, \
     "aaa-100.csv" every :10:110 using 11:3 notitle  with lines 1

pause mouse key
if (MOUSE_KEY != 27) reread