Boosted oil weight?

[Reddevil5.0]

This was long discussed back in the early Coyote days. Numerous analysis reports show that the motorcraft 5w50 very quickly shears down to a 40-30 weight. Running a higher quality 30 or 40 weight will be just as good.

What you recommend?

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[mejohn50]

What brand of oil?

Pennzoil Euro 5w40.

 

[sabtaj1]

5w40 Rotella T6 synthetic here. Been using ever since whipple install.

 

[K4fxd]

What you recommend?

I'm sold on Liqi Moly. I use it in my 13 to 1 Harley twin cam that spins 7000 RPM. Blackstone says I have 3000 miles left after running it for 8000 miles. I change at 8000.

In the HD I do run the 10w60. In the Mustang I run the 5w40. Blackstone says I have many thousands of miles left after I let the oil life monitor get to 25%, where I change it.

 

[DrZed]

I'm sold on Liqi Moly. I use it in my 13 to 1 Harley twin cam that spins 7000 RPM. Blackstone says I have 3000 miles left after running it for 8000 miles. I change at 8000.

In the HD I do run the 10w60. In the Mustang I run the 5w40. Blackstone says I have many thousands of miles left after I let the oil life monitor get to 25%, where I change it.

I have a small twin 883, and always felt the 10W was not viscous enough for the roller crank bearing until the oil got to normal operating temps? Obviously your Blackstone would catch any wear info on this, so interesting to note. Why the 60 weight? I'm using 20w50 right now...

Thx for posting this.

 

[K4fxd]

Why the 60 weight?

It runs a bit quieter and spinning the 95 inch motor to 7000 creates a lot of oil heat.

 

[K4fxd]

Double post

 

[DrZed]

It runs a bit quieter and spinning the 95 inch motor to 7000 creates a lot of oil heat.

Not to hijack this tread, but your redline makes a lot of sense to me. I've heard my 883 can rev much higher than stock (2005) with a new ignition module. I think I'll look into this and the HD tach/speedometer combo (no tach now).

 

[TRP45ACP]

Amsoil, Rotella, Pennzoil are all fine. I prefer Amsoil and they do offer choices for European blends as well.

 

[BrianH87]

What you recommend?

Oh the motorcraft oil is okay. It's just not really offering a true 40-50 weight protection. Do we actually need that high visc is the question.

There was an amsoil guy involved, so of course you know what he recommended. Amsoil is good oil though. There's honestly not many other choices out there in 5w50. Probably why a lot of guys above run the 5w40.

 

[engineermike]

If someone were dead set on 5w50 I would recommend mobil1 FS x2 5w50 over motorcraft.

 

[Reddevil5.0]

3rd vote for 5w40 euro, a3/b4 spec.

What oil brand?

 

[engineermike]

What oil brand?

Pennzoil platinum euro 5w40

 

[TRP45ACP]

Oh the motorcraft oil is okay. It's just not really offering a true 40-50 weight protection. Do we actually need that high visc is the question.

There was an amsoil guy involved, so of course you know what he recommended. Amsoil is good oil though. There's honestly not many other choices out there in 5w50. Probably why a lot of guys above run the 5w40.

In all fairness, I am not an Amsoil guy other than purchasing their products over years. No dog in the fight. The good news, there are a plethora of fine oils on the market.

 

[Reddevil5.0]

Pennzoil platinum euro 5w40

Why the euro spec? I’m new to this

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