My 23 ZR2 just hit 50K miles and used up all my prepaid oil changes meant for 100k miles because of the engine recall cutting the recommended oil change down to 3-5k miles. Was using 1qt per 1k miles of OW-10 until the recall hit and then changed to OW-40 Dexos R rated. I signed up as preferred customer with Amsoil and ordered 3 gal of their signature full synthetic OW-40 and filter that meets and exceeds Dexos R rating at wholesale and will change my oil myself going forward. (Can't trade out of it, no dealer will touch it or if they do show interest they will only go $20k below trade, even checked with relatives that manage mfg dealerships.) So I'm keeping it for awhile. Anyway. I stumbled across this video and I talked with a few mechanics and oil dealers and they agree with everything in it. So I'm going to buy a second old truck like a pre vortec, 350ci, no electronic anything. for my daily. But on my ZR2 I'm stuck running OW-40 until 2032 or 131k miles according to my warranty extension. after that I'm free to put whatever I want in it. I see other guys taking preventive measures with Dodge, Ford, Toyota etc saying screw the lighter viscosity oil and putting in stuff like 5w-20, 5w-30 etc. Curious if anyone is doing similar with their ZR2 especially if they are out of warranty (If one has made it that far).
Anyone using heavier oil than OW-40?
- Thread starter Fosgate
- Start date
AXE
🏆 ZR2 of the Month
- Feb 21, 2023
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The first number is only for cold weather starts, so if you live where it doesn't get cold, a 5W or 10W may be fine.
That being said, I have already done a few oil analysis on 0W40 and they looked perfect. Check out the oil analysis thread.
The dealers are now switching to Mobil 1 0W40 FS per GM direction. You can get a 5 quart jug for $25-27 at Walmart, so you have a couple quarts left for the next change.
That being said, I have already done a few oil analysis on 0W40 and they looked perfect. Check out the oil analysis thread.
The dealers are now switching to Mobil 1 0W40 FS per GM direction. You can get a 5 quart jug for $25-27 at Walmart, so you have a couple quarts left for the next change.
AXE
🏆 ZR2 of the Month
- Feb 21, 2023
- 7,475
- 17,711
I definitely wouldn't take a big hit on a trade. These are good trucks with a 10 year/150k motor warranty.
My service advisor said the motors are not even that expensive, so if you decide to run it post warranty, then a motor swap is still "affordable".
May as well drive it and have fun.
My service advisor said the motors are not even that expensive, so if you decide to run it post warranty, then a motor swap is still "affordable".
May as well drive it and have fun.
Silverado ZR2 Photos
Silverado ZR2 Photos
