Chevrolet Suburban 3500 Questions

[Bigburb3500]

Woohoo! I hope you love it! I’m curious what you asked for in your request.

I received my tune files earlier this week from Justin (quick turnaround), so I’ll get them uploaded to the rig over the weekend. He mentioned that on these trucks, mid-grade 89 can be worth the small additional cost in improved fuel mileage. So I’ll run it and see how it goes.

I am so excited for it based on what you and others have hyped up Blackbear to be!

I put on the form that it is up to their discretion. I use my truck as a daily driver and family hauler, but need/want it for long term reliability and heavy duty use. What did you list down for preferences?

Really? These trucks do noticeably better on mid-grade+? I just did 1000+ miles this week in the truck I could have reported back, but will refill this month and see what comes of it. I think Costco has 87 and 91… will see what the cost difference is too.

 

[Bigburb3500]

Also, did the transfer case and front diff fluid. Transfer case had more on the magnet than expected but seems “normal” based on videos I watched. Front diff fluid was garbage. It was very smelly and funky color. So much for “dealer maintained.”

Glad I got the new fluids in and SUPER easy to do. Easier than an oil change.

 

[Geotrash]

Also, did the transfer case and front diff fluid. Transfer case had more on the magnet than expected but seems “normal” based on videos I watched. Front diff fluid was garbage. It was very smelly and funky color. So much for “dealer maintained.”

Glad I got the new fluids in and SUPER easy to do. Easier than an oil change.

Nice! I guess that’s the advantage of the commercial purpose pedigree - all fluids can be easily changed.

 

[Geotrash]

Also, did the transfer case and front diff fluid. Transfer case had more on the magnet than expected but seems “normal” based on videos I watched. Front diff fluid was garbage. It was very smelly and funky color. So much for “dealer maintained.”

Glad I got the new fluids in and SUPER easy to do. Easier than an oil change.

I had only suggested that I don’t want to lose 87 octane capability, that I tow often, and that I hoped they could optimize for transmission longevity as well.

 

[Bigburb3500]

I had only suggested that I don’t want to lose 87 octane capability, that I tow often, and that I hoped they could optimize for transmission longevity as well.

Ok, that’s hopefully what I conveyed. I did ask to see if they can change the Tow/Haul mode to be more aggressive/better optimized for towing and hauling while the normal be as “normal” as possible.

 

[Geotrash]

Ok, that’s hopefully what I conveyed. I did ask to see if they can change the Tow/Haul mode to be more aggressive/better optimized for towing and hauling while the normal be as “normal” as possible.

If it helps, I find the tow/haul mode settings to be perfect for our 7500 lb camper from the factory. But I once asked if they could dial them down a bit on my ‘07 because they were too aggressive, but for some reason they couldn’t — don’t remember why.