RenntechE55

Im going to do my own Oil soon and was wondering what oil you would recommend for the the HOT AZ climate? Btw my car has 84k miles on it so would it be beneficial to use high mileage? thanks in advance

Max.H

I think the factory oil is too thin for long term use and hot climate. Some people may not agree. But, I would try 10w-40 sythetic or 20w-50.

chiromikey

i'm sticking with the 0-40wt mobile one. i've got over 100k miles here in az and my dyno numbers over the weekend prove my car is only getting stronger.

RenntechE55

thanks for the replies. I bought 0-40wt and wasnt sure, but now i feel I made a good choice. Does anyone have a link to a DIY on a E55 oil change? thanks

hooleyboy

I agree with Mikey his car is real strong. It seem like when he parks his car for the night it goes to the gym to lift weights with a fresh shot of Winstrol.

I would stay away from Royal Purple, I used it and kinda liked it, but i always found myself down a Qt. Maybe some Motul 5W40 I've been using that and Elf motor oil and I like them both. I wont say motor oil is motor oil out of fear of getting engine sludge dumped on me.

I would normally disagree with Mobil 1, Thinking 0w40 is to thin, but Mikey's E55 freak, has changed my mind.

RenntechE55

what about the 15w-50 it says for turbocharged and supercharged engines and for extreme heat. http://www.mobiloil.com/USA-English/...1_15W-50_.aspx

hooleyboy

You dont need that heavy of a motor oil. I'd stick with Mobil1 or a top notch 0w40 or a 5w40

go to a auto parts store and read the back off the container and see it its MB spec oil.

Craigo

I use 10w-40 Amsoil 100% synthetic. it's niceeeee

CynCarvin32

AMG used to use 15w-50 in their motors but emissions laws and fuel milage issues made the 0-40 the new pick. Then when emissions laws got even tighter they went to 5w-40 as it is made to last longer and causes less pollution.

SO in a warm climate the 15w-50 is great. On a 120 degree day thats what I would use. I run that in my E36 BMW track car since all it sees is 2 days a month of constant redline shifting and some pretty extreme ambient temperatures. I even run it on days when its very cold out since once up to temperature at the track the motor stays a steady 230 degrees on the oil temp gauge (with the oil cooler).

For example on very warm days, the lifters on a S52 bmw get very loud one oil temps reach close to 300 degrees. With the 15w-50 the car runs just fine at around 285 degrees on the oil temp gauge but the 0w-40 allows the lifters to start ticking anywhere over 270. The thicker oil just stays stable to a higher temperature.