I have a 2010 GMC Sierra 2500HD 4x4 LMM Duramax. I run 15/40 Mobil full synthetic engine oil
50/50 city/hwy driving in California my monitor will tell me to change my oil at 2000 miles on my existing oil. Truck is completely stock with 146K miles and not driven hard.
All smog equipment intact
DPF recently professionally baked and cleaned with a clean bill of health
How accurate is it. Seems ridiculous to change the oil now and expensive
50/50 city/hwy driving in California my monitor will tell me to change my oil at 2000 miles on my existing oil. Truck is completely stock with 146K miles and not driven hard.
All smog equipment intact
DPF recently professionally baked and cleaned with a clean bill of health
How accurate is it. Seems ridiculous to change the oil now and expensive