6632 - Supply of Wartsila Gas Engine Lubrication Oil and Cooling System Glycol, 3.Statement of Work/ Specifications (2)RFP # 6632
EXHIBIT 3
Technical Specifications
Supply of Wärtsilä Gas Engine Lubrication Oil and Cooling System Glycol
A. PURPOSE
The City of Denton is providing information that will allow prospective suppliers to prepare
submissions to supply a bulk quantities of gas engine lubrication oil and monopropylene glycol
(MPG). The product will be received at the Denton Energy Center, which is located at 8161 Jim
Christal Road, Denton TX, 76207.
B. SUBMISSIONS
Submissions shall be provided using the Exhibit 1, with supporting documentation as required.
Additional information clarifying the supplier’s product may be attached to their submission.
Pricing shall include all costs to deliver goods as specified in this specification. Any special fees
or commissions, and all freight for delivery to the Denton Energy Center must be included in the
quoted price. Item pricing shall be mutually exclusive, thus the City of Denton reserves the right
to choose the best valued item from different vendors.
C. QUALITY CONTROL
The manufacturer shall be responsible for the quality control of the manufacturing processes to
assure that all requirements of these specifications are met. However, the City reserves the right
to sample and test all products at time of delivery. Visible signs of contamination at time of
delivery will result in the product being rejected.
D. WRITTEN WARRANTY and GUARANTEES
Written guarantees shall include any limitations as to the nature of failure or time limitations. The
guarantee shall begin upon receipt of the accepted units, not on the date of manufacture.
Guarantees shall indicate whether or not it is made on a full replacement basis or a prorated basis
and if prorated then what are the terms. Lube oil Manufacturer/supplier guarantees that the
products furnished under this specification are of virgin quality. All replacements by the
manufacturer/supplier shall be free of charge F.O.B. at the same delivery point called for in the
original order.
The respondent must be an approved distributor by the manufacturer of these products, and is
authorized to sell the products to the City of Denton. The respondent also guarantees that the City
will be represented by the Manufacturer, should an issue arise, and that all manufacturer’s
warranties will be in effect for the life of the contract.
IFB 6632 Exhibit 3 Page 1 of 6
E. SPECIAL DELIVERY REQUIREMENTS
Deliveries shall be made between 8:00 AM - 12:00 PM Monday through Friday, excluding
holidays to Denton Energy Center, 8161 Jim Christal Road, Denton, TX 76207. The location has
pumping equipment to off load oil. Glycol must be delivered in totes. The location will have the
ability to offload totes. Empty glycol totes must be picked up by supplier.
F. TECHNICAL REQUIREMENTS
SUPPLIER BRAND NAME VISCOSITY BN SULPHATED
ASH (%M/M)
CHEVRON (TEXACO +
CALTEX)
HDAX 5200 LOW ASH GAS
ENGINE OIL SAE 40 5.3 0.48
EXXONMOBIL PEGASUS 1005 SAE 40 4.2 0.5
SHELL MYSELLA S5 N 40 SAE 40 4.5 0.48
Validated gas engine oils based on API Gp II and IV base oils
The only accepted products are listed above.
Glycol shall be of the monopropylene type. The supplier shall specify the water and glycol ratio for their product to
achieve a freeze protection point of 15° Fahrenheit. The total cooling system volume is 51,590 gallons.
Documentation supporting the ratio must be supplied with bid documents.
G. ACCEPTABLE MANUFACTURERS
DME will only accept submissions from specific manufacturers listed in the approved
manufacturers list below.
Lube Oil
1. Chevron (Texaco + Caltex)
2. ExxonMobil
3. Shell
Glycol
Any brand of monopropylene glycol that is available in commercial quantities. The glycol will
only be accepted in tote quantities.
IFB 6632 Exhibit 3 Page 2 of 6
Wärtsilä
Corporation Finland
Technology
INSTALLATION MANUAL
This doc is the property of Wärtsilä Corp. and shall neither be copied, shown or communicated to a third party without the consent of the owner.
Subtitle Product Made 11.08.1998 K. Juoperi /
J. Norrgård Page Document No Rev
- Wärtsilä 34SG Wärtsilä 34LPG Wärtsilä 50SG Appd. 15.01.1999 U. Åstrand 1 (4) 4V92A0780 k
Revised date: 24.09.2015 Changed by: K. Juoperi/F. Zhang Approved by: J. Mikkilä/A. Vakkila Change notice No.: CN-A027972
REQUIREMENTS AND OIL QUALITY
LUBRICATING OIL REQUIREMENTS AND QUALITY FOR WÄRTSILÄ®
34SG, WÄRTSILÄ® 34LPG AND WÄRTSILÄ® 50SG ENGINES
Viscosity
Viscosity class SAE 40
Viscosity Index (VI)
Min. 95
Alkalinity (BN)
Lubricating oils with BN of 4 - 7 mg KOH/g have to be used.
Sulphated ash level The content of sulphated ash in gas engine lubricating oils is a very important property. Too
high ash content can cause preignition, knocking and spark plug fouling, while too low ash
content can lead to increased valve wear. Low ash lubricating oils with sulphated ash level
of max. 0,6 % m/m have to be used.
Additives The oils shall contain additives that give good oxidation stability, corrosion protection, load
carrying capacity, neutralisation of acid combustion and oxidation residues and should
prevent deposit formation on internal engine parts.
Foaming characteristics
Fresh lubricating oil shall meet the following limits for foaming tendency and stability,
according to the ASTM D 892-92 test method:
Sequence I: 100/0 ml
Sequence II: 100/0 ml Sequence III: 100/0 ml
Base oils
Use of virgin base stocks is only allowed, i.e. recycled or re-refined base oils are not
allowed.
IFB 6632 Exhibit 3 Page 3 of 6
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CONDEMNING LIMITS FOR USED LUBRICATING OIL
When estimating the condition of used lubricating oil, the following properties along with the corresponding limit values must be noted. If the limits are exceeded, measures must be
taken. Compare also with guidance values for fresh lubricating of the brand used.
PROPERTY UNIT LIMIT TEST METHOD
Viscosity cSt at 40 °C max. 50% increase ASTM D 445
Viscosity cSt at 100 °C max. 25% increase ASTM D 445
Water % v/v or % m/m max. 0,30 ASTM D 95 or D 6304C
Base Number mg KOH/g max. 50% depletion ASTM D 2896
Total Acid Number mg KOH/g max. 2,5 mg KOH/g
increase
ASTM D 664
Insolubles % m/m in n-pentane max. 1,0 ASTM D 893b
Oxidation Abs/cm max. 25 IR
Nitration Abs/cm max. 20 IR
CHANGE OF LUBRICATING OIL BRAND
Top-up with another lubricating oil brand than being filled to the system is not allowed, except if the both two lubricating oils originate from the same manufacturer and are based
on same base oils and additive technology. Otherwise the lubricating oil system has to be
drained and then filled with another brand by following the procedure described here below.
In order to minimize the risk of lubricating oil foaming, deposit formation, blocking of lubricating oil filters, damage of engine components, etc., the following procedure should be
followed when lubricating oil brand is changed from one to another:
If possible, change the lubricating oil brand in connection with an engine (piston) overhaul
Drain old lubricating oil from the lubricating oil system
Clean the lubricating oil system in case of an excessive amount of deposits on the surfaces of engine components, like crankcase, camshaft compartment, etc.
Fill the lubricating oil system with fresh lubricating oil
If the procedure described above is not followed, responsibility of possible damage and
malfunctions caused by lubricating oil change should always be agreed between the oil company and customer.
IFB 6632 Exhibit 3 Page 4 of 6
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VALIDATED LUBRICATING OIL QUALITIES FOR WÄRTSILÄ® 34SG,
WÄRTSILÄ® 34LPG AND WÄRTSILÄ® 50SG
NATURAL GAS AND LIQUEFIED PETROLEUM GAS OPERATION
There exists experience that lubricating oils manufactured from API Group II or IV base oils
are able to offer better cleanliness of exhaust gas boiler / economizer compared to
lubricating oils manufactured from API Group I base oils and are thus recommended in the
first place for such applications. In some cases also longer change intervals may be
achieved by using API Gp II or IV based products.
Table 1: Validated gas engine oils based on API Gp II and IV base oils:
SUPPLIER BRAND NAME VISCOSITY BN SULPHATED
ASH (% m/m)
Bharat Petroleum
Corp. Ltd.
MAK GES XLA 40 SAE 40 5,3 0,48
Chevron (Texaco
+ Caltex)
HDAX 5200 Low Ash
Gas Engine Oil SAE 40
SAE 40 4,2 0,50
ExxonMobil Pegasus 905
Pegasus 1005
Pegasus 1
SAE 40
SAE 40
SAE 40
6,2
5,0
6,5
0,49
0,50
0,49
Idemitsu Kosan
Co. Ltd.
Apolloil GHP 40L SAE 40 4,7 0,45
MOL-LUB Ltd. MOL GMO Longlife 40 SAE 40 6,6 0,50
Pakelo Motor Oil
S.r.l.
Geoterm LA 4 SAE 40 6,6 0,50
Petro-Canada Sentron LD 5000 SAE 40 4,9 0,57
Petronas GEO S 40 SAE 40 5,6 0,46
Sasol Gas Engine Oil LA 40 SAE 40 5,5 0,50
Shell Mysella S5 N 40 SAE 40 4,5 0,48
Total Nateria X 405 *) SAE 40 5,2 0,45
Table 2: Validated gas engine oils based on API Gp I base oils:
SUPPLIER BRAND NAME VISCOSITY BN SULPHATED
ASH (% m/m)
Castrol Duratec L SAE 40 4,5 0,45
Chevron (Texaco
+ Caltex)
Geotex LA 40 SAE 40 5,2 0,45
ExxonMobil Pegasus 705
Pegasus 805
SAE 40
SAE 40
5,3
6,2
0,49
0,50
Lukoil Efforse 4004 SAE 40 5,56 0,49
Petrogal Galp GN 4005 SAE 40 5,2 0,45
Shell Mysella S3 N 40 SAE 40 5,0 0,45
IFB 6632 Exhibit 3 Page 5 of 6
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USE OF NON-VALIDATED LUBRICATING OILS:
Before using a lubricating oil not listed in the tables above, the engine manufacturer must be
contacted. Lubricating oils that are not validated have to be tested according to engine
manufacturer’s procedure.
Should a non-validated lubricating oil be used during the engine warranty period, and there
exist no agreement with the engine manufacturer about testing, the engine guarantee does
not hold.
Lubricating oil companies listed above along with other possible manufacturers and
distributors undertake all responsibility for the performance of their validated lubricating oils
in service to the exclusion of any liability of any Wärtsilä company belonging to Wärtsilä
group.
Further, they shall indemnify, compensate and hold harmless Wärtsilä and companies belonging to Wärtsilä group from and against any claims, damages and losses caused by
the lubricating oils in question.
LUBRICATING OILS FOR ENGINE TURNING DEVICE
Based on the turning device manufacturer’s instructions EP-gear oils having viscosity of 414
- 506 cSt at 40 °C = ISO VG 460 are normally considered as suitable lubricating oils for turning device. The following products are fulfilling the requirements:
LUBRICATING OILS FOR ENGINE TURNING DEVICE
SUPPLIER BRAND NAME VISCOSITY
cSt at 40 °C
VISCOSITY
cSt at 100 °C
VISCOSITY
INDEX (VI)
BP Energol GR-XP 460 460 30,5 95
Castrol Alpha SP 460 460 30,5 95
Chevron (Texaco
+ Caltex)
Meropa 460 460 31,2 97
ENI S.p.A. Blasia 320 300 23,0 95
ExxonMobil Mobilgear 600 XP 460 460 30,6 96
Fuchs Renolin CLP 460 460 30,4 95
Petro-Canada Enduratex EP 460 452 30,4 97
Shell Omala S2 G 460 460 30,8 97
Total / Lubmarine Carter EP 460 470 30,3 93
IFB 6632 Exhibit 3 Page 6 of 6