The zinc compound abbreiviated ZDDP, is an extreme pressure additive that helps keep flat tappet camshafts from wearing out. synthetic with the most zinc in valvoline also i run rotella in my toyota truck actually. Shell rotella did a major marketing coupe thats still paying off, because the parent company took the zddp out of their regular oil ( penzoil) the brand with the most zinc is VR.I use 15W-40 Shell Rotella in my CTD Dodge. (Edited) All SAE rated oils that are currently on the mass market have had their 'zinc' or ZDDP or other high pressure additive package changed due to OBD II demands concerning emissions sensors being contaminated by the additive packages that contain 'zinc'.The older CI rated shell rotella 15w-40 is still ok to use for flat tappet cam protection but if you already have the newer CJ oil in the motor use some gm eos or crane superlube breakin concentrate with the newer shell CJ rated 15w-40 oil with reduced ZDDP you should be ok.
This is likey due to the increased outside air temperature (high 70's here) naturally making the engine run warmer, but could also be negatively affected by the lighter 40 weight warm viscosity rating of the Rotella vs. At stop lights, I've noticed a marginal increase in the amount of heat coming from the engine.
Shell Rotella T is good oil although many tests done in recent years have shown that Mobil Delvac 1300 15w40 is superior for it's high temperature and High TBN for superior soot handling. Royal Purple is another oil brand that also provides high-quality motor oil for passenger cars to high-performance cars. Lucas SAE 10W-40 Hot Rod Motor Oil Lucas Oil SAE 30 High Zinc Engine Break-In Oils 03. Here is the high zinc oil list that comes from Lucas.However, we still use the Rotella as a break-in oil. Now it is the only assembly lube we are using and has resulted in the elimination of cam lobe flattening on the dyno.
SPEED-O-MOTIVE said: CMW oils and assembly lube were initially tested in our CORR race engines with good results. Valvoline VR1 Racing SAE 20W-50 High Performance High Zinc Motor Oil 5 QT. Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Quart, Single Pack). Product: Shell Rotella T4 Heavy Duty Diesel Engine Oil Viscosity Grade: SAE 15W-40 Labeled: API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4 Manufactured By: SOPUS Product, Houston, TX Purchased at: Edison, NJ Date of purchase: Website(s): Company Information: Shell Oil Company US (SOPUS) is the United States-based subsidiary of Royal Dutch Shell.Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Case of 3) 4.8 out of 5 stars 3,963. I now really ride much harder during that first 1/2 hour than ever before.
Processor: Intel Core i7-2675QM CPU 2.20GHzĪpple Inc.: FaceTime HD Camera (Built-in)Īpple Inc.: Bluetooth USB Host ControllerĪpple Inc.X2 If you can find an older oil that is CJ-4 (not CK-4) than that will most likely have higher zinc levels (~1200 - 1400 ppm). Now the middle mouse popup brings up a menu with text and icons again (a long list which needs to be scrolled through- please see attached image).
The script worked perfectly until I downloaded the latest release of Rhino Software information…