RNA352
Member
I run Motorcraft full syn & filter. Boring I know. Maybe I'll go crazy next time and get the FP filter.
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Amsoil has other products that are API certified. The SS oil has too many additives in it and as such doesn't meet their "recipe" guidelines, as I understand it. By additives, I mean things like sulfated ash, boron, moly, etc. All the good stuff!So I saw, posted in another forum, that Amsoil Signature Series is not API certified. Wondering, does anyone how this plays into warranty
What factual info do you have proving it is a high quality oil?There are a lot of discussions about Amsoil Signature not having the API certification. Amsoil helped create the API standards for motor oils back in the 70's, and they still have some API certified oils that they market. However for the Signature line, their explanation is API limits the amount of additives they can put in the oil, and they feel the additional additives (above the API limits) are beneficial to the life of the oil/engine. I personally have no problem running it - it is definitely a very high quality product and is a great fit for these engines.
This stuff saysI would recommend driven FR50 for any Coyote engine (Predator as well). The base oil is mPAO vs PAO. This means it maintains Viscosity (VI) over the hundreds of heat cycles/duty cycle. The VI of Driven is due to the base oil and not by adding tons of viscosity improvers that all other 5w-50s have.
Driven FR50 5W-50 Synthetic Street Performance Oil
Driven FR50 5W-50 Synthetic Street Performance Oildrivenracingoil.com
BT
What I run in my GEN 2 , yeah yeah wrong oil Whatever . It is API SPSee if you can find this on the stock Motorcraft 5W50, then compare it to Motorcraft 5W30 full synthetic, among others. In fact, I'd genuinely like to see 5W50 from any brand that has the API emblem.
View attachment 425489
See if you can find this on the stock Motorcraft 5W50, then compare it to Motorcraft 5W30 full synthetic, among others. In fact, I'd genuinely like to see 5W50 from any brand that has the API emblem.
View attachment 425489