I would treat 130 degrees genuine oil tenperature as a moment of concern. I used to back off at 122 degrees before I had a full flow oil filter/cooler combo. With an 80 degrees C oil thermostat, driving through motorway roadworks at 50mph I see 80 degrees C. If I give it either flat out up hill or 65mph on the flat, that climbs to 105-108 degrees C now. When I slow down oil tneperature tends to start dropping while the cylinder heads heat up madly, going up 20-30deg C . I have checked my 150 deg C VDO sender +gauge- its within 2 degrees of a thermocouple meter jammed into the oil at 100C . VDO data on 120, 130 , 140 and 150 deg C senders... https://vdo-webshop.nl/en/34-temperature-sensors Note different resistance at 90 deg C
New sender purchased for testing... just in case... 170° one. Sent from my SM-T580 using Tapatalk Edit This one in case anyone is wondering Brickwerks - Temperature Sender - VAG 170° Oil Temp Gauge - Parts, spares and components for VW T3, (T25, Type 25, Vanagon) T4 (Eurovan), LT (LT1, LT28, LT30, LT35, LT40, LT45, LT50, LT55) & MK1 Caddy GoWesty UK 049 919 563 B 049-919-563/B 049919563B 4014427070429 https://www.brickwerks.co.uk/temperature-sender-vag-170-oil-temp-gauge.html Other sellers are available ....
