New tires with better traction and better rolling resistance.
Reviews of GENERAL MOTORS parts For Business
USA
GM recommended 5-30 pre 2019. Post 19 they changed to 0-40. Reason is emissions. Do a Google search and you'll see there is alot of skuttlebutt out there about using thinner weight oils and the lack of protection.
I have a 23 Z71. Took it in for sweet smell (coolant) after driving. They did a leak test and replaced the upper rad hose. Said it was a common isssue.
On the Bolt specifically, just make sure to confirm the battery was actually replaced. Otherwise, the Bolt is an excellent car especially as a 2nd car for a family. The charge speed and the recall concerns are the only reason against getting one.
I have a 2021 lm2 with 150,000 miles. I had to replace the number 3 injector around 140,000 but that’s all I’ve had to do.
I personally worked on a 2021 with 375,000km. It needed a water pump.
Upon getting the car back, the car's fuel economy is notably worse and the car is more sluggish.
My biggest issue is when there’s slushy snow mix on the roads other cars pass by and it splashes on to the front bumper. The headlight cavities are just collectors for this slush and after a bit they’re full of slush and headlights don’t work at all anymore.
I took mine to dealership twice both times...upper radiator hose leak. Was putting in coolant like no tomorrow. First time at like 10k miles and again around 20k.
They had my 23 in for a month while they found parts. They did the new upper hose, and a year later i smell antifreeze again. Worst design i have ever seen.
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