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Simmons Synthetics
Gas Engine Oils
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GEPS 30-140 Series

Partial Synthetic Gas Engine Oils are manufactured from a blend of synthetic and petroleum base stocks.

They are recommended for service in two-cycle and four-cycle gas engines, naturally aspirated and turbo-charged.

GEPS-30 and GEPS-40 are ashless and GEPS-130 and GEPS-140 are low ash. They have an excellent gas engine oil additive packagecontaining anti-wear agents, oxidation inhibitors and detergent-dispersants.

GEPS 30-140 Product Data Sheet

Physical Properties

Products

 GEPS-30
 GEPS-40 GEPS-130GEPS-140

SAE Grade

 30 40
 30 40

Viscosity

@ 40°C, cSt

@ 100°C, cSt

 

96.0

12.7

 

116.0

14.6

 

96.0

11.1

 

130.0

14.0
Viscosity Index 128
 128 101
 105

Flash Point, °F(°C)

 445 (229)
 460 (238)
 450 (232) 465 (241)

Pour Point, °F (°C)

 -25 (-32)
 -22 (-30)
 -25 (-32) -22 (-30)

Foaming Tendancy

  Seq I

  Seq II

  Seq III

 

NIL

NIL

NIL

 

NIL

NIL

NIL

 

NIL

NIL

NIL

 

NIL

NIL

NIL
Copper Corrosion 1A 1A 1A 1A
Sulfated Ash, % wt. NIL NIL .45 .45
TBN, mg /KOH/g 1.3 1.3 5.1 5.1