Vauxhall VECTRA Owner's Manual page 281

O il change interv als for oil q ua lity GM-LL-A-025 or GM-LL-B-025
Interva l Engine code
max . 2 years or Z 18 XE,
20, 000 miles Z 18 XEL,
(30,000 km) Z 20 NET,
Z 22 SE,
Z 32 SE
max . 2 years or Y 20 DTH,
30, 000 miles Y 22 DTR,
(50,000 km)
Q uality classes
GM -LL-A-025
GM -LL-B-025
I nform ation rega rding oil qualit y
GM-LL-A-025 or GM-LL-B-025
GM = General Motors
LL = Long Life
A or B = internal desig na tion
025 = va lid ity index
Higher validity indices indicate
progressively more refined c lassifications.
O ils w ith higher validity indices can be
used.
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