thinking about switching from M1 5w-30 to Rotella 5w-40 in my sr20det. asked around on my Nissan forums and no one really knows much about it. just wondering if anyone thinks it would be a good or a bad idea to try it out? M1 has worked well for me so far but its pretty thin and my engine is getting up to 100K miles here pretty soon. i assume my tolerances have loosed slightly so im thinking rotella might be a decent choice. doesn't burn much oil if any but it does come out very very nasty looking. haven't done a UOA yet either but i will soon.
Shell Rotella T 5w-40 oil in nissan sr20det?
- Thread starter sr20tnt
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rotella 5-40 would be a fine choice of oil in that. it wont hurt anything with almost 100k on it, its plenty broken in. run with no worries
Go for it, and run a UOA on the M1 you're taking out. 
I would also consider Mobil 1 0W-40.
I'd run Castrol Syntec 0W-30 (GC) first before jumping all the way to the 40-weigh RTS. As you probably know, GC is a very thick 30-weight oil...quite a bit thicker than M1 5W-30.
The SR20DE works well on a 30 wt oil (I have done a dozen UOAs on my '01SE). No reason it wouldn't do just as well on the turbo version. Synthetic obviously would be desirable.
Originally Posted By: sr20tnt
thinking about switching from M1 5w-30 to Rotella 5w-40 in my sr20det. asked around on my Nissan forums and no one really knows much about it. just wondering if anyone thinks it would be a good or a bad idea to try it out? M1 has worked well for me so far but its pretty thin and my engine is getting up to 100K miles here pretty soon. i assume my tolerances have loosed slightly so im thinking rotella might be a decent choice. doesn't burn much oil if any but it does come out very very nasty looking. haven't done a UOA yet either but i will soon.
Depends. Stock SR20 or are you turning up the boost? Any modded SR20 should be on a 40W IMHO.
thinking about switching from M1 5w-30 to Rotella 5w-40 in my sr20det. asked around on my Nissan forums and no one really knows much about it. just wondering if anyone thinks it would be a good or a bad idea to try it out? M1 has worked well for me so far but its pretty thin and my engine is getting up to 100K miles here pretty soon. i assume my tolerances have loosed slightly so im thinking rotella might be a decent choice. doesn't burn much oil if any but it does come out very very nasty looking. haven't done a UOA yet either but i will soon.
Depends. Stock SR20 or are you turning up the boost? Any modded SR20 should be on a 40W IMHO.
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