When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Has anyone out there used Royal Purple Diesel 15w40 Oil in there 6.0? Thinking of using it for the first time and wasn't sure if its actually worth the extra $$$. Side note- I live in Southwest Florida with pretty excessive heat year round.
It's CJ-4 rated and 15W40; it will function. Is it worth $30 a gallon when Delvac 15W40 is $10 a gallon? Not really, no oil is going to last longer than 5000-7500 in a 6.0 so why buy something 3x more expensive for the same oil life?
I use 5W40 year round in Texas, no temp issues and easier starting. I buy T6 when its on sale for $20/gal for the 5W rating.
I did once. Never again. I don't remember which weight, whichever the factory recommended I'm sure. I spent over $150 just in oil (this was maybe 6 years ago).
If you dont have a sponsorship or a rich uncle I wouldn't use Royal Purple. It may be good oil but not worth the money. I do however believe in full synthetic oil. I have used in in all my cars and I have yet to have a oil leak. Now conventional oils have changed and not sure how they really compare but its synthetic for me. I usually have my oil changed at the dealer in hopes they will be nice to me if I have a problem.