I know I'm beating dead horse here, but I just want to see which oil will be best to use in my application. Read bunch of different oil threads and there is a lot of different "ifs" and variables. So here it goes: 2011 gt500 that makes north of 800rwhp on stock motor with e85. Car has all cooling mods to incule 170 thermostat, large aftermarket oil cooler with thermostatic oil filter addapter plate that opens up at a higher temps. Car is now located in Miami and often driven in 80-100 degree weather. It is not a daily driver and sees a good amount of high mph runs. I've been using amsoil signature series 5w50 with moroso oil filter that I change every 2500 miles or 6 month. Should I stick with it or put in something different?????
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