ACDelco GM Full Synthetic ATF vs Royal Purple Manual Transmission Fluid

The ACDelco GM Full Synthetic ATF is widely considered to be a great Transmission Fluid at its $12 budget. The Royal Purple Manual Transmission Fluid, however, while also a good product at this price point, doesn't stack up against its competitors quite as well.

The ACDelco GM Full Synthetic ATF hasn't managed to perform well enough to earn a place in any Transmission Fluid roundups conducted by sources that do their own, high-quality, hands-on testing. That alone makes it a hard product to recommend.

Moving on to the Royal Purple Manual Transmission Fluid: no sources that perform reliable and objective hands-on testing have included it in their Transmission Fluid roundups, which usually means that a product doesn't make for a good purchase.

As a last step, we wanted to do a head-to-head ACDelco GM Full Synthetic ATF vs. Royal Purple Manual Transmission Fluid comparison of their review performance but, unfortunately, weren't able to find any review ratings on either product.