I've been a Rotella T6 5w-40 user for the last 5 years. Paired it with a WIX/Napa gold filter with the proper bypass pressure. Car's been a daily driver for 4 of those years, with heavy autocross usage in the last 2-3. Now it's sits in the garage 6 days out of the week. 25-30 events per year. Turboback, exhaust, tune. Stock was 230 crank, now around 280. ~220whp. 2004 EJ20 to be exact.
I'm now out of the old Rotella. The switch to CK-4 concerns me as additives and such have changed and I see some people on here dislike it. The more and more I think about it, it is marketed as diesel oil.
This post was especially concerning:
http://www.chevelles.com/forums/13-performance/958417-rotella-ck4-warning.html
I'd like to change and narrowed it down to a few choices. Price isn't a huge issue, but I'm really looking for protection with 135k on the car. I would like to stick with a 40 weight. I only burn a hair of oil over 3-4k. I will be sticking with 3k mile changes as I only put about 6k on the car total, mostly racing and traveling to these races. I'm on 4k for this change, but there's some slight valvetrain tap when the oil is warming up. Goes away when hot and always with fresh oil.
1. Castrol Edge 0w-40
Seems likeable here. Hadn't really though of going down to a 0 weight. Any issues there? Priced at ~$25 per 5 quarts, this is actually cheaper than Rotella gallons and buying an extra quart. I see a lot of reviews for German cars, but nearly no one using this for Subarus.
2. Motul 8100 X-Cess 5w-40
Pricey, but only $38 on Amazon. I'd have to always order online and prices have been jumping up to even $50. Mostly positive reviews. for the price though, I could change with Castrol or Rotella twice. Appears to be a solid oil however.
3. Stick with Rotella 5w-40
Some have said Rotella is still godly and just use it, all oil is the same. Still concerned with the new standards for autox use or the long run.
I've batted around Liqui Moly and a few others, but that's my current list. Which would you go with for my application?
I'm now out of the old Rotella. The switch to CK-4 concerns me as additives and such have changed and I see some people on here dislike it. The more and more I think about it, it is marketed as diesel oil.
This post was especially concerning:
http://www.chevelles.com/forums/13-performance/958417-rotella-ck4-warning.html
I'd like to change and narrowed it down to a few choices. Price isn't a huge issue, but I'm really looking for protection with 135k on the car. I would like to stick with a 40 weight. I only burn a hair of oil over 3-4k. I will be sticking with 3k mile changes as I only put about 6k on the car total, mostly racing and traveling to these races. I'm on 4k for this change, but there's some slight valvetrain tap when the oil is warming up. Goes away when hot and always with fresh oil.
1. Castrol Edge 0w-40
Seems likeable here. Hadn't really though of going down to a 0 weight. Any issues there? Priced at ~$25 per 5 quarts, this is actually cheaper than Rotella gallons and buying an extra quart. I see a lot of reviews for German cars, but nearly no one using this for Subarus.
2. Motul 8100 X-Cess 5w-40
Pricey, but only $38 on Amazon. I'd have to always order online and prices have been jumping up to even $50. Mostly positive reviews. for the price though, I could change with Castrol or Rotella twice. Appears to be a solid oil however.
3. Stick with Rotella 5w-40
Some have said Rotella is still godly and just use it, all oil is the same. Still concerned with the new standards for autox use or the long run.
I've batted around Liqui Moly and a few others, but that's my current list. Which would you go with for my application?
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