I looked at Mobil 1 (my oil of choice) and would use the 0w20 if it were listed in the manual as an alternate. DC is scary when it comes to rejecting warranty claims. Don't want any MDS FUBAR (fouled up beyond all recognition) with the "wrong weight" oil that DC would claim in the event of an engine failure. We both know the 0w20 would not be the cause but who has the resources to fight DC in court. And if you won, the legal fees alone could buy an SRT8 and a Z06. I use the oversized Amsoil filter for an extra 1/2 qt filtration, I looked at K&N but did not like the "impregnated resin" in the filter, is this stuff like PTFE, remember the disasterous ARCO graphite oil from the 70s. I also run Filtermag and Turbomags on the pan bolt and transmission pan. Castrol Syntec 5w20 is my choice.lacadac said:I drive my 300c VERY hard. I only average 16mpg. I have performed 2 oil changes to my car and I have used Mobil 1 0w20. I read this as well. I trust Mobil 1. Oil looked good when I changed it yesterday. I change it every 3000 miles. I know that you can go longer but I choose not to. I also perfer the K and N oil filter (part # HP-2004)
Make sure you RESET the mileage in EVIC to get the proper MPG. If you dont, you will get the "running avge" since the last time you reset it. So even thought the most recent trip you tooook between last fill ups got you 22MPG...when avged over the last several tanks it is only 17.6. Just a thought.FOAMAVEN said:I Just bought mobil 1 0w-20 and will have the dealer install it when I bring it in to have rattles taken out of my sun roof, and evic average mpg adjusted. Last tank full read 17.2 mpg and an actual calculation was 23.9mpg! P.S. I love this car!!!
I agree, the dealer is DC and if they do it it's on them if there is a problem. Many of us who change our own oil only have the autozone receipt and our log book which is why I will have the dlr do my changes as long as I am under warranty every 6K and bring my own oil and filter.LWOOD said:I use mobil 1 0W-20, because when I have the dealer perform my oil changes, that's what they put in. I would like to see them give try to void my warranty.
Thanks Blue, but I do reset both the trip mileage as will as the mpg, it must be out of calibration.Blue said:Make sure you RESET the mileage in EVIC to get the proper MPG. If you dont, you will get the "running avge" since the last time you reset it. So even thought the most recent trip you tooook between last fill ups got you 22MPG...when avged over the last several tanks it is only 17.6. Just a thought.