Recommended oil for supercharged Coyote

[JpL4K3]

RP 5w20 here.

 

[UnleashedBeast]

-50 weight oils are thick. usually run with race engines with .003 .0035 (loose) bearing clearances.
and takes away a bit of power to pump it, jus saying guys. 5.0's are prob. tight clearance like .0025 or so. not sure of that, rough guess with a production eng.
Be curious as to what weight oil folks were running with oil pump gear failure

That's why I recommend sticking with 5W-20 Amsoil Signature Series on any 100% stock internal NA engine, regardless of bolt on mods. Superchargers and Turbo builds excluded. My newly revised application list addresses this.

This is a newly revised application list I have created and is simplified to make the choice easier. This recommendation list will cover all seasons for your car, from the harshest winter days, to the hottest summer days. The best part is the oil only has to be changed once a year or 15,000 miles, whichever occur first. Amsoil AZF 0W-40 (Challenger Hellcat and Nissan GTR) and AMR 5W-50 (Ford Mustang) are two new formulations created for powerful street cars.

8 quart fill – GT
8.5 quart fill – Boss 302 and Track Pack GT

Amsoil ALM 5W-20 – If your engine is 100% internally stock in Naturally Aspirated form, regardless of external simple bolt on mods, driven daily in all climates, use this. *Mustang GT only* previously, the old list recommended formulations in the 0W-30 to 10W-30 range for this engine. However, after testing in my personal 2014 Mustang GT with a stock engine, 5W-20 Signature Series is a contender. Using previous recommendations is OK, but will now use AZF 0W-40 as the blanket for most application requirements beyond 5W-20 for simplicity.

Amsoil AZF 0W-40 - If you have a Boss 302 or Track Pack GT and you do not attend HPDE events, use this. Some people ask me if it’s OK to use this at the HPDE. If you plan to attend one event a year and are not driving the car to the edge of cooling limits, it’s acceptable. Schedule the annual oil change to happen right before the event to insure the lubricant is fresh. However, if you are an experienced HPDE track person, 5W-50 may be better suited for you. See the recommendation for 5W-50.

Amsoil AMR 5W-50 - If your street car has a single/twin turbo or supercharger making a lot of power on pump gas or with advanced timing using E85 (or) If you have a Boss 302 or Track Pack GT, and you HPDE or race your car in competition for extended sessions….use this. *Not optimal for short trip, grocery getting, daily driven street duties. If you have a turbo or supercharged car that is driven daily, isn’t raced frequently, used on the streets for occasional wide open throttle bursts, Amsoil AZF 0W-40 is a better choice.*

Amsoil EaO17 - This oil filter outperforms any filter on the market for the Coyote/Roadrunner. Royal Purple is the same filter, part # 20-500.

Amsoil Synchromesh - requires 3 quarts. Use this if you road race your car, or you are experiencing poor shifting.

If you have the Auto 6 speed, this stuff will survive the worst torture.

Amsoil LV Synthetic ATF - 12 quart total fill

and for the rear differential

Amsoil 75W-140 - requires 3 quarts

Don't forget the friction modifier

Amsoil Slip Lock - use all four ounces

*Boss 302 and Track Pack GT owners. If you have the Torsen differential in your car, do not use friction modifier.*

Amsoil Fuel Stabilizer - Use 1 ounce per 2.5 gallons of gasoline when storing your car in the winter.

Bottle Hand Pump - makes pumping new fluid into the transmission and rear differential very easy.

UOA testing kit - we have dedicated UOA threads to compare everyone's reports.

UOA thread

Last thing, do NOT pay retail for Amsoil...EVER! This is how to buy all Amsoil products at wholesale cost (saves 25% off retail).

Preferred Customer

 

[466roller]

Why the change on the 600+ HP cars? Just put dominator 10-30 mine. Plan on doing a UOA in 6 months. I'll see how it fairs

 

[sharptech]

unleashedbeast is the 0w40 a thicker oil than the 5w20? I'm Paxton charged daily driver. Don't do track events yet, but stupid worried about oil pump gears. Some say thicker oil helps the gears, some say thinner oil is easier on them what do you think? Eventually I'll do the OPG's but really don't want to rip that Paxton off AGAIN lol.

 

[fulanititoo8198]

Why the change on the 600+ HP cars? Just put dominator 10-30 mine. Plan on doing a UOA in 6 months. I'll see how it fairs

Same question thats what I'm running as previously recommended, should we switch over?

 

[UnleashedBeast]

First thing, no reason to change what you are already using due to prior recommendations.

My recommendation change is due to Amsoil's new AZF 0W-40 formulation. It's a bit more viscous at operating temps than their 10W-30 formulations, but flows a bit better on cold starts for those who drive their powerful cars year round in cold climates. NOACK Volatility barely increased and if as shear stable as their 0W-30 formulation, makes a kick ass lubricant. Think of it as a "blanket" recommendation that can do the job of all previous 10W-30 recommendations with one formulation. This is for simplicity to the masses.

0W-40 is more viscous at engine operating temps than 5W-20 and not recommended for stock internal NA cars used on the street (excluding Boss 302). Even the Track Pack GT can use 5W-20 when only used on the street. I also found no reason to recommend a more viscous lubricant than 5W-20 Signature Series for NA bolt on only cars used on the street only. My tests have returned amazing results. Even the valve train looked new after a near 10,000 mile interval using 5W-20 on a 100% stock engine used for 30+ drag strip passes. Had a best of 7.5 @ 92 mph.