There is a lot of concern raised over cam damage in older flat tappet gasoline engines when current gas engine oils are used because of the reduction or elimination of zinc. Would using a diesel oil provide the cam protection these older engines are said to require?
July 7, 2014
A. If you are using the older gasoline engine for normal operating conditions, a diesel engine oil type formulation does typically provide higher Zinc levels and the higher viscosity-15W-40 will provide extra oil film in addition to the higher Zinc.
Posted @ Monday, July 7, 2014 12:00 AM | »
June 23, 2014
A. Diesel heavy duty engine oils that meet the current American Petroleum Performance Category CJ-4 are backward compatible with older engines such as yours.
Posted @ Monday, June 23, 2014 12:00 AM | »
Why does Mobil say they can go 15,000 miles, and Amz-Oil to 25,000 to oil change. while others just say change at recommended intervals according to the book? Also how far can I go with syn oil in our truck fleet, and again, is one oil better than the other?
June 9, 2014
A. Your question regarding the products you have referenced need to be directed to those companies to support their claims. However, there can be a difference in the synthetic composition of engine oils.
Posted @ Monday, June 9, 2014 12:00 AM | »
I am trying to make a comparison to show the cost savings per truck annually when using this particular product versus a conventional motor oil such as Shell Rotella 15W-40. It is my understanding that with the SynDurance, there is a fuel savings of about 2 to 5% due to reduced engine friction - is that accurate?
May 26, 2014
A. Typically the range has been from 1-3% depending on type of fleet. With current diesel fuel prices that can yield an annual savings of up to $1500 or more annually in fuel savings.
Posted @ Monday, May 26, 2014 12:00 AM | »
May 26, 2014
A. Manual automated generally utilize the same type of drive line lubricant as manual transmissions.
Posted @ Monday, May 26, 2014 12:00 AM | »
May 12, 2014
A. If the natural gas engine is spark ignition and operates totally on compressed or liquefied natural gas, major engine manufacturers recommend a natural gas engine oil as opposed to an oil designed to operate on diesel fuel engine and compression ignition.
Posted @ Monday, May 12, 2014 12:00 AM | »
April 28, 2014
A. Even though many if not most heavy duty engine oils claim both the API C or commercial performance category for diesel and S or service category for gasoline engines, there are two factors two consider.
Posted @ Monday, April 28, 2014 12:00 AM | »
April 14, 2014
A. No, the engine does not develop an affinity for one oil or have a negative reaction to changing brands.
Posted @ Monday, April 14, 2014 12:00 AM | »
March 31, 2014
A. Good question and an area that is most often neglected or done incorrectly. Many truck 5th wheels are re-lubricated by simply taking the grease dispensing unit and dispensing a ribbon of grease around the 5th wheel plate and often neglecting the 5th wheel jaws which engages the trailer pinion entirely.
Posted @ Monday, March 31, 2014 12:00 AM | »
March 17, 2014
A. TBN is total base number and TAN is total acid number. TBN is a measure of the reserve alkalinity or reserve acid neutralization remaining in the oil.
Posted @ Monday, March 17, 2014 12:00 AM | »
March 3, 2014
A. There is no set answer to this question or standard. The answer depends on make, model, engine condition and operating conditions. A badly worn engine will consume more oil than an engine with less wear.
Posted @ Monday, March 3, 2014 12:00 AM | »
February 17, 2014
A. Oils listed with W (which stands for winter) can have different numerical values different combinations within what is called a multi-grade diesel engine oil.
Posted @ Monday, February 17, 2014 12:00 AM | »
November 20, 2013
A. Actually, Cummins recommended a multi-grade oil 15W-40 in this engine which offered several benefits versus a straight SAE 40 Oil.
Posted @ Wednesday, November 20, 2013 12:00 AM | »
November 6, 2013
A. Soot loading in the oil is caused by fuel combustion by products and can be impacted by operating conditions, engine condition and the efficiency of the fuel injection system.
Posted @ Wednesday, November 6, 2013 12:00 AM | »
September 18, 2013
A. Greases vary widely in their performance capability in respect to the basic performance factors. Greases for heavy equipment can be designed to pump very easily in cold weather while lasting up to three or four times longer in severe service. The key is to ask the right questions regarding grease design and performance capability matched to the operating conditions.
Posted @ Wednesday, September 18, 2013 12:00 AM | »
September 11, 2013
A. Yes, if you are using a Cummins Westport Spark-Ignition Engine, CITGARD CNG / LNG is the best recommendation.
Posted @ Wednesday, September 11, 2013 12:00 AM | »
September 4, 2013
A. Follow the oil analysis provider’s oil sampling guidelines. The best way to obtain an oil sample is to use an oil valve directly attached to the engine port.
Posted @ Wednesday, September 4, 2013 12:00 AM | »
August 28, 2013
A. Depending on the proportion of the each that you mix, the results will vary. By mixing two different products, the end result no longer either grade, but something in between.
Posted @ Wednesday, August 28, 2013 12:00 AM | »
August 21, 2013
A. A full-synthetic heavy-duty engine oil typically is offered in a 5W-40 or 5W-30 grade. Full-synthetic oils include many advantages.
Posted @ Wednesday, August 21, 2013 12:00 AM | »
I'm a lubricants consultant for 3,000 vehicles, mostly class 8 long haul fleet.
August 14, 2013
A. CITGO is already doing the necessary testing of the new requirements that will take effect in early 2016. These requirements will include fuel efficiency, which is a category that has always been a main focus for CITGO.
Posted @ Wednesday, August 14, 2013 12:00 AM | »
August 7, 2013
A. Semi-synthetic oil means that the finished lubricant contains both conventional- and synthetic-based oils. The amount of synthetic component can vary from product to product with no set rule as to how much synthetic base oil is used.
Posted @ Wednesday, August 7, 2013 12:00 AM | »
How about if you change from regular to synthetic? Can a person just experiment with oils to see which one works best? How about mixing them? By that I mean using an odd brand in a pinch when you can't find the one that's in your crankcase?
July 31, 2013
A. It’s perfectly fine to change brands of oil – the engine doesn’t care.
Posted @ Wednesday, July 31, 2013 12:00 AM | »
July 24, 2013
A. Re-refined oils have proven to be successful alternatives. Today’s re-refining process for base oils – when combined with the high-performance additive technology – can rival the performance of their virgin base oil counterparts.
Posted @ Wednesday, July 24, 2013 12:00 AM | »
July 17, 2013
A. Thank you so much for your interest. We are always looking for ways to grow our brand, with people who are passionate about the product. Please contact David Kunkel at email@example.com – he can assist.
Posted @ Wednesday, July 17, 2013 12:00 AM | »
July 10, 2013
A. Grease is often given the least attention, and has been described by many fleet managers as the weak link in establishing maintenance schedules. Today’s fleets have steadily extended re-lubrication schedules.
Posted @ Wednesday, July 10, 2013 12:00 AM | »