Recent content by ksurfier

Or maybe that ignores the fact that ICE vehicles became economically dominant largely because cheap crude oil made them affordable enough to overcome their higher operating costs. That gave the market enough runway to mature, scale, and displace the original EVs that existed in the late 1800s...

For those of you getting close to lease return, has anyone bought cheaper replacement tires and been pleasantly surprised by the efficiency or performance? I’m thinking EngineX tires may be a decent budget option for lease turn-in, especially if the goal is simply to meet the return...

Thank God for ’Merica where I can sit on my couch crushing Doritos and Coke, then hop in my Suburban to drive the kids a full mile to school. But stopping at a Supercharger for 15 minutes and taking a short walk? Absolutely not. That’s communism… or worse yet, exercise.

Well, we could certainly debate the climate response to CO₂ and other greenhouse gases — if only we had a time machine to go back to the 1990s. That debate ended a long time ago.

EVs didn’t win because environmentalists convinced everyone. They won because economics did. Once they became cheaper to fuel, cheaper to maintain, and good enough for daily use, the case made itself.

InsideEVs reported usable battery energy around 88.7 kWh from EPA filing data. let’s assume 10% SOC on arrival, so for the trip 80 kWh available. Then 2.5 MPK efficiency results in a distance covered of 200 miles, maybe a little less or more depending on external physical/environmental factors...

The LTs will last a little longer too, so the net cost of LT vs SL is likely a wash (higher cost due to lower efficiency), ideally, get an extra set then you can pick what you need (LT for towing/offroading and SL/XL for daily driving), it will pay for itself in ~2 years (12,000 mi/yr). This way...

Buy atomic wheels then get whatever tire your heart desires, done.

The Tri sticker was for the factory all-terrain setup. The Quad Super Sport package uses a different staggered tire setup, including a wider 305 rear Michelin with a higher 118 load index. That gives Rivian room to placard the Super Sport package at 44 psi while still meeting load/handling...

This makes sense, Defenders weight ~5% more than the Pirellis should have a small impact making them slightly less efficient. Personally, I’d pick the Defenders all day long compared to the Pirellis. Especially considering they are $100 less per tire and will likely last longer than the...

Just to clarify 115H vs 116H issue (which has a very long history of confusing everyone here), a word of caution: The door pillar label shows the tire specs that Rivian has designated for each vehicle, this is what the tire shops will follow. The way to look at Rivian tire load ratings is...

Never let the facts get in the way of a good story! The data are clear and well correlated to MPK, I agree that rolling resistance is the direct mechanism, and I’m not claiming tire weight alone explains every efficiency difference. Of course tread compound, tread pattern, casing construction...

RivianForums owner data suggests MPK tracks strongly with tire weight. Tread design, compound, size, and PSI still matter, but tire weight appears to be the clearest predictor of efficiency and driving feel. Ultra-light ~35 lb tires: often reported near 2.4–2.7+ mi/kWh; best acceleration...

Great! Look forward to prelim efficiency numbers when you get a chance…if you can run 60 mph near 60 f that gives a good idea…

The General Grabber HTS60 is the best value tire currently available for efficiency. While its treadwear is not class-leading, the tire is backed by a mileage warranty, helping offset replacement costs and making its lifetime cost of ownership very attractive. More importantly, numerous Rivian...