Quote:
Originally Posted by Samurai Jack
If it was me, I wouldn't use 5W30.
I have used three (3) different engine oils over the years and I would recommend any one of them. It all depends on availability and cost
1. Mobil1 0W40
2. Redline 5W40
3. Motul 5W40 8100 X-cess
Ran my EJ205 on #'s 1 & 2 above. It was @150,000 miles when I pulled it ( well, I had it pulled for an engine swap to something better ) and it was still running strong with solid compression @ 145 per cylinder
Now I just need to find a new home for my EJ205
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So thicker oils run better, but you say that Subaru uses the thinner oils to increase gas mileage, will using the thicker oil worsen my mpg?