diff --git a/src/lang/english.txt b/src/lang/english.txt
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -4406,8 +4406,12 @@ STR_VEHICLE_DETAILS_SERVICING_INTERVAL_M
 STR_VEHICLE_DETAILS_SERVICING_INTERVAL_PERCENT                  :{BLACK}Servicing interval: {LTBLUE}{COMMA}%{BLACK}   {STRING1}
 STR_VEHICLE_DETAILS_LAST_SERVICE_DATE                           :Last service: {LTBLUE}{DATE_LONG}
 STR_VEHICLE_DETAILS_LAST_SERVICE_MINUTES_AGO                    :Last service: {LTBLUE}{NUM} minutes ago
-STR_VEHICLE_DETAILS_INCREASE_SERVICING_INTERVAL_TOOLTIP         :{BLACK}Increase servicing interval by {TKM 10 5}. Ctrl+Click to increase servicing interval by {TKM 5 1}
-STR_VEHICLE_DETAILS_DECREASE_SERVICING_INTERVAL_TOOLTIP         :{BLACK}Decrease servicing interval by {TKM 10 5}. Ctrl+Click to decrease servicing interval by {TKM 5 1}
+STR_VEHICLE_DETAILS_INCREASE_SERVICING_INTERVAL_TOOLTIP_DAYS    :{BLACK}Increase servicing interval by 10 days. Ctrl+Click to increase servicing interval by 5 days
+STR_VEHICLE_DETAILS_INCREASE_SERVICING_INTERVAL_TOOLTIP_MINUTES :{BLACK}Increase servicing interval by 5 minutes. Ctrl+Click to increase servicing interval by 1 minute
+STR_VEHICLE_DETAILS_INCREASE_SERVICING_INTERVAL_TOOLTIP_PERCENT :{BLACK}Increase servicing interval by 10 percent. Ctrl+Click to increase servicing interval by 5 percent
+STR_VEHICLE_DETAILS_DECREASE_SERVICING_INTERVAL_TOOLTIP_DAYS    :{BLACK}Decrease servicing interval by 10 days. Ctrl+Click to decrease servicing interval by 5 days
+STR_VEHICLE_DETAILS_DECREASE_SERVICING_INTERVAL_TOOLTIP_MINUTES :{BLACK}Decrease servicing interval by 5 minutes. Ctrl+Click to decrease servicing interval by 1 minute
+STR_VEHICLE_DETAILS_DECREASE_SERVICING_INTERVAL_TOOLTIP_PERCENT :{BLACK}Decrease servicing interval by 10 percent. Ctrl+Click to decrease servicing interval by 5 percent
 
 STR_SERVICE_INTERVAL_DROPDOWN_TOOLTIP                           :{BLACK}Change servicing interval type
 STR_VEHICLE_DETAILS_DEFAULT                                     :Default