race car interior with guages

Technical Specifications

PTH Racing Oil is formulated with an additive package that includes a high level of ZDDP for anti-wear, with a carefully engineered balance of detergents and mineral additives to protect your engine. See Tech Specs below for each of our oils.

  • High zinc formulation provides excellent wear resistance for high rpm, high compression, flat-tappet and pushrod engines
  • Engineered to provide outstanding protections in racing conditions.
  • Includes friction modifiers to promote maximum horsepower.
  • Anti-foaming characteristics to provide consistent oil supply and surface protection.

PTH oils are tested with benchmark equipment to ensure a consistent high-quality performance product.

PTH Oil Safety Data Sheet

PTH Racing Oil 20-w50 lab results
PTH Racing Oil 20-w50 lab results. (click image to enlarge)

Check out some photos of our lab test equipment used to monitor our oils during manufacturing.

PTH Racing Oil 20W 50

Specific Gravity: – 0.886

Kinematic Viscosity 40C: – 147.62

Kinematic Viscosity 100C: – 19.84

Viscosity Index: – 155

HTHS: – 5.2

Flash Point: – 235°C

Cold Crank Viscosity: – 3298cP

TBN: – 10

PTH Racing Oil 20W 50

PTH Racing Oil 5W 30

Specific Gravity: – 0.854

Kinematic Viscosity 40C: – 74.2

Kinematic Viscosity 100C: – 11.97

Viscosity Index: – 158

HTHS: – 3.3

Flash Point: – 214°C

Cold Crank Viscosity: – 5207cP

TBN: – 10

PTH Racing Oil 5W 30

PTH Racing Oil 10W 40

Specific Gravity: – 0.856

Kinematic Viscosity 40C: – 107.19

Kinematic Viscosity 100C: – 15.71

Viscosity Index: – 156

HTHS: – 4.1

Flash Point: – 222°C

Cold Crank Viscosity: – 3616cP

TBN: – 10

PTH Racing Oil 10W 40
PTH Racing Oil - tapered bearing simulator
PTH Racing Oil - testing in the tapered bearing simulator
PTH Racing Oil - testing the cold crank simulator
PTH Racing Oil - testing the cold crank simulator
PTH Racing Oil - viscosity testing in the lab
PTH Racing Oil - viscosity testing in the lab
PTH Racing Oil - lab tests
PTH Racing Oil - lab tests
Spectroil Q100 benchmark tester for wear metals analysis
Spectroil Q100 benchmark tester for wear metals analysis
PTH Racing Oi viscosity testing
PTH Racing Oi viscosity testing

 by Roger, Interim Update – Long-Term Test of PTH Racing Oil, StudioVRM</em>

“Between the results of the Used Oil Analysis and the condition of the valvetrain, it looks like PTH 5w30 is doing a very good job of protecting the fast-moving metal parts within the motor.”

“Even after 5+ hours of time, the motor responded to quick jabs of the throttle just like it did the day after the oil change….”

“…I do like the idea that I could potentially run my engine oil through a 6, 12, or even 24 hour endurance race and not have to worry about protection or power loss. Based on my experience so far, PTH 5w30 seems to be an oil that could do just that.”