Mobil One vs Royal Purple
OK I change my oil today on my Ford V-10 3 valve, I decided to try another brand than Mobil One, I switch over to Royal Purple 5-20 and used their oil filter, so with that said while sitting here doin...
Forum Discussion
Was thinking of switching over to royal purple on suvs but decided to stick with mobile 1 + filter. On the diesel i use rotella T5 and mobile 1 filter. Only way to find out the results of which is better and last longer is send it to the lab like kayteg1 mentioned.
