changing fluids to royal purple

[mustangrfast88]

ok guys and gals i have been thinking about changing the front diff, transmission, transfer case and rear diff to royal purple has anybody used the stuff and did it help you or not, i sea foamed the truck last weekend and it did help went almost a mile per gal
on fuel milage. so i am thinking maybe if i change all the fluids and put new o2 sensors in i might be able to get 16-19 miles per gallon instead of this 12-15. i also run moble 1 sythatic oil in the engine. so what are your guys opions

 

[pronstar]

If you are inclined to use synthetics, I'd just do it when fluid replacement was required for a particular component.

I wouldn't drain perfectly good fluid just to put synthetic in.

IMHO Amsoil's marketing can be a bit optimistic in their claims, though it is a very good product.

 

[mustangrfast88]

i see well everything is ready for the 100000 mile change so i was just thinking of changing to the royal purple

 

[Burnrubber1]

Here's a link that I was referred to when inquiring about using Royal Purple in my bike. Royal Purple has no reference to API or JASO on the label. In the article you will learn a few things about oil. I'm kinda skeptical about using Royal Purple now!
http://www.sportrider.com/tech/146_0308_oil/

 

[mustangrfast88]

i see i didnt read the whole article but you got to look at the source it is from a motorcyle book and motorcycles are alittler different then cars, i might just gand it is one of the only places you can buy it o with a good quality oil maybe not royal purple but i got guys from the speed shop the swear by the stuff

 

[pronstar]

I wouldn't expect too much from oil, but Royal Purple is good product.