Cestoburn is the most revolutionary gasoline additive ever invented
What is Cestoburn?
Cestoburn is Cestoil Chemical trademark for the gasoline additive methylcyclopentadienyl manganese tricarbonyl (sometimes called MMT or MCMT). This innovative product has been used for decades by modern refineries around the world to increase the octane number (RON and MON) of gasoline, reduce tailpipe emissions, increase the size of the gasoline pool, and reduce refinery emissions.
Cestoburn is compatible with all modern gasoline engines, and all modern vehicle emission control systems (including catalytic converters). This unique additive is EPA approved for use in the US, and has seen widespread use in over 70 countries worldwide. MMT is a registered trademark of Afton Chemicals. Cestoburn is a registered trademark of Cestoil Chemical Inc.
What is the benefit of Cestoburn?
Cestoburn provides the following benefits:
- Increases RON and MON
- Allows refiners and blenders to produce more gasoline
- Lowers tailpipe emissions.
- Reduces the amount of crude oil required to produce gasoline
- Reduces crude oil imports.
- Maximizes refinery efficiency.
* MMT is allowed in U.S. gasoline at a level equivalent to 1/32 grams per gallon manganese (gpg Mn).
* In its decision on the use of MMT in the U.S., the Agency determined that MMT, added at 1/32 gpg Mn, will not cause or contribute to regulated emissions failures of vehicles. Some have expressed concerns that the use of MMT may harm on-board diagnostic equipment (OBD) which monitors the performance of emissions control devices in the vehicle. As of this time, the Agency believes the data collected is inconclusive with regard to OBD.
* Manganese is a neurotoxin and can cause irreversible neurological disease at high levels of inhalation. However, ingested manganese is a required element of the diet at very low levels. There is a concern that the use of manganese additives in gasoline could increase inhalation manganese exposures.
* After completing a 1994 risk evaluation on the use of MMT in gasoline, EPA was unable, based on the available data, to determine if there is a risk to the public health from exposure to emissions of MMT gasoline. The Agency stated "Although it is not possible based on the present information to conclude whether specific adverse health effects will be associated with manganese exposures in the vicinity of or exceeding the [estimated safe level over a lifetime of exposure], neither is it possible to conclude that adverse health effects will not be associated with such exposures." This assessment was based upon the level of MMT allowed in U.S. gasoline.
* More specifically, modeling indicates that, as a result of MMT use in unleaded gasoline, certain portions of the population may be exposed to levels in the same range as the Reference Concentration (RfC or safe level for a lifetime exposure with an order of magnitude uncertainty). Because the expected exposure is not much higher or much lower than the RfC, a definitive conclusion about risk is impossible to reach. Long-term animal testing and exposure research are needed to more accurately define the risk.
* Under Clean Air Act authority to require testing of motor fuels and additives, EPA has required the Afton Corporation to perform testing to help fill data gaps and potentially provide information that would result in a more definitive risk evaluation.
This testing included three health pharmacokinetic (PK) studies and one emission characterization study. Completed final reports for all of these studies have been submitted to EPA. These final reports can be found in the Federal Docket Management System (FDMS) at www.regulations.gov identified by docket number EPA-HQ-OAR-2004-0074.
* In addition to the already completed tests, the manufacturer is now in the process of developing physiologically-based pharmacokinetic (PBPK) models for manganese which are being derived from data generated from the completed testing. Afton anticipates that these PBPK models will be completed in 2008.
* After submission of this additional information, the Agency will study the results. The Agency may then be able to refine its risk evaluation or may ask for further testing based upon the results of the submitted testing and resulting model now being developed, as well as any other available data.
With funding from Afton, Research Triangle Institute (RTI) also completed a study of manganese exposures in Toronto, Canada where MMT is used. The Agency is also evaluating this study to determine what impact it might have on any evaluation of risk associated with use of the additive.
Contact: Joe Sopata, phone: (202) 343-9034, email: sopata.joe@epa.gov
Enviromental Research of MMT
A 4-year longitudinal study is being conducted to evaluate potential changes to the environment and exposure of young children associated with the introduction of methylcyclopentadienyl manganese tricarbonyl (MMT) into Australia in 2001. The cohort consists of 57 females and 56 males, with an age range of 0.29-3.9 years.
Samples are collected every 6 months from children in residences located at varying distances from major traffic thoroughfares in Sydney. Environmental samples include air, house, and daycare center dustfall, soil, dust sweepings, and gasoline; samples from the children include blood, urine, handwipes prior to and after playing outdoors, and a 6-day duplicate diet. All samples are analyzed for a suite of 20 elements using inductively coupled plasma methods.
Results are presented for the first three 6-month sampling periods for lead (Pb) and manganese (Mn). For dustfall accumulation, expressed as metal concentration/m^2/30 days, there was no significant difference between homes and daycare centers for either Pb or Mn, no significant change over the three sampling periods (time) for Pb or Mn, and a positive relationship between ''traffic exposure'' (traffic volume and proximity to the road) and Pb but not Mn. Lead concentrations in soil was a significant predictor for Pb in the house dustfall. For handwipes, the concentrations of Pb and Mn in wipes taken from children after playing outdoors was usually significantly greater than those for wipes taken prior to playing.
There was no significant association between the concentrations of either Pb or Mn in handwipes and traffic exposure, and there was no significant association between Pb concentrations in the handwipes and gender, although the latter showed a marginally significant association for Mn (P=0.053). Age was related to Pb level in the handwipes, with older subjects having higher Pb levels, and there were significant decreases in Pb and Mn concentrations over time. Dustfall accumulation was a significant predictor for Pb in the handwipes, and dust sweepings were a significant predictor of Mn in handwipes. Blood lead (PbB) concentrations ranged from 0.6 to 19@mg/dL (GM 2.6) (n=269), and manganese in blood (MnB) ranged from 1.8 to 45@mg/L (GM 11.6) (n=254).
There was no significant difference between females and males for either mean PbB or MnB; over time there was a significant decline in PbB but no significant change in MnB. The only significant predictor for PbB was dustfall accumulation, although dietary intake may also be important, and the only significant predictor for MnB was Mn in handwipes prior to playing. At this early stage of the investigation we have not been able to detect any increases in Mn in these environmental samples or blood samples potentially associated with the use of MMT; in fact the Mn levels in handwipes declined over time.
For Additional Information
For further information, click on the buttons in the body of the page to download or view related technical documents. Note that documents in PDF format require the Adobe Acrobat Reader.
Cestoburn Product Packaging Size
Cestoburn Product Case History
Cestoburn Treatment Rates
Cestoburn 8062 Material Safety Data Sheet
Cestoburn 8000 Material Safety Data Sheet
Contact Cestoil Chemical at 514-889-9069 or email to
info@cestoil.com for immediate service.
E-mail: info@cestoil.com
