MrDRMorgan
Posts: 1096
Joined: Wed Oct 30, 2013 7:27 am
Location: Manteca in Central California

Re: Front tire wear

Thu Jan 16, 2020 5:15 pm

NORTON wrote:
Thu Jan 16, 2020 4:50 pm
MrDRMorgan wrote:
Thu Jan 16, 2020 2:43 pm
.... I wonder if driving in L all of the time could be a cause??
Slowing down at ~30 kW of Regen displayed in L is no different than slowing down with your foot on the brake and displaying ~30 kW of Regen.
These cars have Blended Brakes! Tesla's do not....

I wouldn't give that a second thought.

Geez, but seeing your car's death spiral in the numbers must be a bummer. :(
You must be doing something wrong.... :lol: JK.....

I routinely flog my car.
Do you tip-toe in the car everywhere you go? Are you one of these guys that always get better than 5 mi / kWh?

Batteries are electrochemical devices.
Could it be they enjoy stretching their legs and working hard once in a while? :?:
1. I don't smoke the front tires but, occasionally, I do "goose it" on the freeway.
2. 5 mi/kWh??? My average is usually higher than that! That is except for today. 44 degrees outside, cabin heater on, headlights on, wipers on. Mi/Kwh = 3.4.

Someone knows the secret to battery longevity - I don't! :lol:

neomaxcom
Posts: 16
Joined: Fri Feb 09, 2018 12:37 pm

Re: Front tire wear

Mon Mar 16, 2020 4:16 pm

I've got a 2014 LT1 that I bought two years ago with 10,000 on the clock. I replaced the original front tires at roughly 20,000 and then the next year with about 38,000, I replaced all four after I apparently destroyed one of the rear tires with something on the road.

Made a trip last weekend to pickup a computer at a store that the round trip with no charging was within a dozen miles with no recharge, had a little diversion and returned home with 2 miles of range left and usage of 13.4 Kw with 99 percent of the power used.

Notable about this particular spark EV is that it was first registered in Michigan in February 2013 meaning it was an early production unit (the VIN ends in 00067 if memory serves) tagged by GM in Detroit so it is one of the oldest batteries. And as I think about it, I seem to be losing about a KW of storage a year of usage.

Winter-time range varied from the high 50's mostly but on the milder days low 60's this year whereas last year range was always in the mid-60 mile range as winters are relatively mild in Georgia.

I did decide to try using cheap-o tires bought online from walmart for right at $40/tire as, at least on the fronts I'm only getting about 15000 miles (rear tires were replaced with cheepo's too as one had succumbed to a road hazard.)

BTW: 2014's battery warranty is supposed to be invokable when you lose 35% of the batteries capacity. I just never quite grasped what that amounts to in Kwh storage ... Also the warranty is good through next January.

Funny thing I'll add. I'm not sure I want to return to the local dealership as the last time I took the vehicle in (only chevy store service needed) to refill the coolant level in the battery maintenance system, (it wouldn't accept a level 2 charge) then sent it back with some rather odd off-hours charging schedule that would mean five minutes of charging at 3 am. When it wouldn't take a charge I had the sense at the time to check and found the software setting for delayed charging. I'm pretty sure the dealership (they used to be an advertiser of mine) was jerking my chain and figured the tech would be too much for a 69 year old man :)

Anyway, the question that spurred that was who at GM would I contact (mychevy has no listed service outlet and obviously I'm in GA, not CA (but remember this car was first registered in MI. so it entered the distribution system as something other than a new car delivery.)

NORTON
Posts: 1278
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Front tire wear

Thu Mar 19, 2020 3:03 am

neomaxcom wrote:
Mon Mar 16, 2020 4:16 pm
I've got a 2014 LT1 ....
>I did decide to try using cheap-o tires bought online from walmart for right at $40/tire as, at least on the fronts I'm only getting about 15000 miles ......

>>BTW: 2014's battery warranty is supposed to be invokable when you lose 35% of the batteries capacity. I just never quite grasped what that amounts to in Kwh storage ... Also the warranty is good through next January.

>>>.....I took the vehicle in (only chevy store service needed) to refill the coolant level in the battery maintenance system, ....

>>>>Anyway, the question that spurred that was who at GM would I contact...
> You, sir, are enjoying this little EV Hot Rod! 8-) I tell people it's a hybrid. It burns electrons and rubber!! :lol:
I too went the cheapo tire route, only thru amazon... No Problem Found!

>> Yikes... 8 years already? :o

>>> Are you saying you had the battery TMS coolant changed? Or was the level down and they topped it up? (That shouldn't happen. Keep an eye on it.) :!:

>>>> Keep us posted if you try to use the warranty!
For some reason my '14 is churning along great. Although I haven't logged it's capacity in a while because I use less than 50% per one way commute and plug in at both ends due to the cold weather. :|
Used '14 2LT w/ DCFC. +78 K miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 1st try car died again, 2nd try not covered / cost $800. 3rd try fixed the problem.

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