I don't carry a spare I have enough weight with a canopy and chairs and other car show related stuff 😁 I never used the supplied compressor either. I Suppose if you are prone to tire malfunctions I'd have a spare.
Gt's don't have Intercoolers turbo cars do and you're cooling air with a intercooler 🙂
50/50 mix is good for at least 20* below. in a garage even a unheated one will keep it out of wind and weather.
Older car a 16 1st oem battery died a couple months after I bought it next one lasted 6yrs 5 mo.
I get readings at 14.5 but never 15v mines not daily driver so I keep it on a battery tender.
Got charged $130 after the sale was completed was told the discount coupon wasn't for my item even though the website accepted my order. Credit card company allowed it to happen, needless to say I don't do business with either anymore!
Used for car shows Amber or White when driving.
How ever I see Jeeps all the time with colored Halo's in my town,must not met a cop with a bad hair day 😁😉
As for which 1 is better can't answer 🤔 I put the Redline's on in 2017 I also do car shows so my hood is raised and lowered a lot more than most. They have Never failed.