[blk88verde]

Premium 93 and the coppers with proper gaps worked well for me. Improved grounding won't hurt either. The Cruze was by far the most affected by heat soak car I have ever owned. I have a GTO LS1 and BMW 320i - both cars are flawless in the heat and humidity.

 

[blk88verde]

2013 LT with the 1.4 Turbo. I'm quickly growing to despise it. Runs great in the 3 months of cool weather we typically have down here. not so much in the other 9 months so far it seems.

- Get the coppers in your engine and 93 in your tank. I had no issues with A/C on in 90+ temps after that combo. Zero hesitation and I had a 6MT ECO.

 

[blk88verde]

The thing is with premium, you should also pick up some MPGs, since timing is not being pulled. I kept my Pontiac when I got my Cruze. Glad I kept it. The gas mileage of the Pontiac on the highway is about half of what my ECO got. It does put a smile on my face when I drive it though.