EVOEvolved

iTrader: (1)

I am always looking at different oils on the market and I have been using castrol edge for about 12 years. 10W-30 in the summer and 5W-20 in the winter. I was thinking of trying 0W-20 in the winter, but I wanted to get some more insight on what people think. Does this weight still allow the characteristics to properly protect the engine?

LetsGetThisDone

iTrader: (1)

20 weight oil is for engines that are designed for it. The 4g63 is designed for a 30 weight oil, stick with it. Do not run anything thinner than a 30 weight oil in your car. If you want thinner oil for easier cold winter starting, try a 5w30 or 0w30.

llDemonll

iTrader: (21)

^ what he said. 30 weight with whatever initial modifier you want. I run 10-30 year-round but it doesn't get much below 20 for more than a few days here

Turndown

iTrader: (2)

I run Brad Penn it's great stuff

Hotsauce101

iTrader: (4)

Rotella T6 - 5W40.

Car is stored for the winter.

Isabelle Knobel

I use Castrol 10w-30 year round for basically everything I own. The Galant sees Rotella 15w-40 non synthetic or Valvoline VR1 non synthetic 20w-50 only.

kaj

iTrader: (60)

Rotella t6 5w40 (my bearing clearances are on the high side of spec). i pretty much track and autox the car, with the occasional weekend cruise. no way would my car survive on 20w

njboy

iTrader: (1)

I just do factory fill Mobil 10W30.

jturby

Same as njboy Mobil 1 10W30 although specifically a full synthetic.

Jonno99

When I bought my Evo over a year ago, I had the same question re oil, I bought some mobile 1 but before I used it I read this forum on all the oil threads, Brad Penn and amsoil were the top oils then I read about how journal turbo's need a high zinc and phosphouris added oil, so because over here it's to hard to get Amsoil, I bought some penrite racing 10 with high zinc and phosphorous added. I used the mobile 1 for my family car instead. Penrite also make a good racing high temp brake fluid, I've done 4 track days on it without a hint of fade

Theres a table on oil brands and additives on a web site I can never remember where it is.

SWOLN

iTrader: (6)

Did 0W-20 for 60,000 miles. I think I'm the only one though.

cts4g63

iTrader: (1)

Typically always use Castrol full synthetic 10w-30 with STP filter changed every 3-4k miles.

e_kobz

iTrader: (36)

On my Evo X I run VR1 10w-30 non synthetic race oil. Works great, 0 issues. On my IX track I was using Penrite 10w-40 racing oil. But Penrite has pulled out of the US so now I'm on the hunt for a new racing oil. Probably Amsoil dominator

kaj

iTrader: (60)

out of curiousity, does anyone have a reasoning they would like to share as to why they use expensive oils in their daily drivers? particularly race/non-synthetic/etc?
and what info and/or research did you use to arrive at that conclusion?

not trying to start ANOTHER oil thread. just curious.

LetsGetThisDone

iTrader: (1)

My "stock daily driver" vehicles get regular old off the shelf synthetic and a wix filter, changed at 7500 miles, or when the oil life indicator says to do so, whichever comes first.