RL on sale at CTC

[Slippery_Pete]

Picked up some RL 5w30 at CTC today for $10/ quart. Not a great price but it's better than $13. I grabbed 5 of the 7 quarts that they had.

 

[CATERHAM]

Good price.
But just so you know, with a HTHS vis of 3.8cP, the highest of any so called 30wt on the planet, it really is a light 40wt oil.
In fact M1 0W-40 is lighter at all temp's.

 

[Slippery_Pete]

Originally Posted By: CATERHAM
Good price.
But just so you know, with a HTHS vis of 3.8cP, the highest of any so called 30wt on the planet, it really is a light 40wt oil.
In fact M1 0W-40 is lighter at all temp's.

Higher than GC?

 

[BobFout]

Originally Posted By: Slippery_Pete
Originally Posted By: CATERHAM
Good price.
But just so you know, with a HTHS vis of 3.8cP, the highest of any so called 30wt on the planet, it really is a light 40wt oil.
In fact M1 0W-40 is lighter at all temp's.

Higher than GC?


We think GC has an HTHS of 3.6.

 

[Slippery_Pete]

That sucks.
For some reason I though RL oils were near the heart of the viscosity range for their grade.
Oh well, it should still make a good summer/track use oil. Which is infact the reason I bought it

 

[BobFout]

Originally Posted By: Slippery_Pete
That sucks.
For some reason I though RL oils were near the heart of the viscosity range for their grade.
Oh well, it should still make a good summer/track use oil. Which is infact the reason I bought it


RL's HTHS is usually that of one grade above it.

 

[CATERHAM]

Originally Posted By: Slippery_Pete

Oh well, it should still make a good summer/track use oil. Which is infact the reason I bought it

And that's the forte of this excellent (although thick) VII free oil.

 

[Ben99GT]

Originally Posted By: Slippery_Pete
That sucks.
For some reason I though RL oils were near the heart of the viscosity range for their grade.


Going by kinematic viscosity they usually are, with the exception of their 5W-20 which is on the thick end for 20-weights, it's the HTHS viscosity that runs high in RL oils.

Red Line 5w30
Vis @ 100°C, cSt: 10.6
Vis @ 40°C, cSt: 62
HTHS Vis, cP: 3.8

Mobil 1 5w30
Vis @ 100°C, cSt: 11.1
Vis @ 40°C, cSt: 63.1
HTHS Vis, cP: 3.13

Pennzoil Ultra
Vis @ 100°C, cSt: 10.3
Vis @ 40°C, cSt: 57.3
HTHS Vis, cP: 3.1

Amsoil 5w30 (ASL)
Vis @ 100°C, cSt: 10.8
Vis @ 40°C, cSt: 60.7
HTHS Vis, cP: 3.2