At Straub Technologies we have been working with several oil companies over the last 2 years to give the consumer an oil that functions the best with hyd roller lifters. Because Morels tolerances are so tight they need an oil that not only lubricates the engine but functions as a hydraulic oil.
After testing we will now recommend running Driven Oil for all hyd roller engines.
Here is a note from Lake Speed Jr:
Sorry so long to get back to you. It has been one of those days...
It was great chatting with you about hydraulic roller lifters in high-performance engines and how oil viscosity plays a significant role in the performance of the lifter. Many people seem to miss the fact that oil is a hydraulic fluid in these engines, and these lifters require the correct viscosity hydraulic fluid to function properly. And there are many factors that affect the viscosity of an oil once it's been in the engine for a while. All of this comes together to make the choice of oil a very important factor for a high-performance, hydraulic roller lifter engine.
At Straub Technologies we have done extensive testing with several engine builders and parts manufacturing companies to determine the correct viscosity and formulas to provide the best performance for hydraulic roller lifters.
Extensive engine testing in both race engines and street engines has confirmed that a 10W–40 viscosity grade provides better hydraulic lifter performance than 30 grades or 50 grade motor oils. As a result of this testing, here are the oils that we recommend for high-performance, hydraulic roller lifter engines.
Break-in: BR40 (part number 03706)
Hot Rod/Show Car: HR5 (part number 03806)
Street performance: HR6 (part number 03906)
Driven is not sold in Walmart but can be bought at local speed shops and some online vendors.
One unique additive the I really love about this oil is the use a chemical compound developed in WWII that prevents corrosion during long periods of storage. Most of our Hot Rods sit, so the added factor that the oil provide protection to your engine during long periods of storage is a huge plus.