Thu Apr 30 17:52:37 2009 From: diesel john trying to decide which amsoil synthetic Diesel oil to use in the cj-10a... in my '91 300D I use the HDD (5w30), in my 6.2/6.5's and my son's '85 300D have always used the AME (15w40 marine grade). The ACD is another option, basically heavy duty 30W. all three are rated at 25,000 drain intervals for normal use... my question is which one will allow the best fuel economy in the tug? all the specs are listed below but I haven't been keeping up on all the spec info on the synthetics for some time... I'm thinking the HDD 5w30 will get the best mileage... thoughts? john TYPICAL TECHNICAL PROPERTIES 25,000 mile intervals in normal use, 15,000 severe duty AMSOIL Synthetic Diesel Oils HDD AME ACD price per quart $10.40 $7.90 $7.76 price per gallon $41.00 $31.05 $31.05 SAE weight 5W30 15W40 10W30 Kinematic Viscosity @ 100B0C, cSt (ASTM D-445) 11.3 14.2 10.5 Kinematic Viscosity @ 40B0C, cSt (ASTM D-445) 64.9 93.2 66.3 Viscosity Index (ASTM D-2270) 170 157 141 Cold Crank Simulator Apparent Viscosity @ -30B0C, cP (ASTM D-5293) 5160 4386 5917 Pour Point B0C (B0F) (ASTM D-97) -50 (-58) -42 (-44) -36 (-33) Flash Point B0C (B0F) (ASTM D-92) 226 (439) 238(460) 230(446) Fire Point B0C (B0F) (ASTM D-92) 242 (468) 256(493) 248(478) Noack Volatility (DIN 51581) 250B0C for 1 hour, % weight loss 7.3 7 6.7 High Temperature/High Shear Viscosity, cP, 150B0C, 1.0 x 106 s-1 (ASTM D-4683) 3.4 4.3 n/a Four-Ball Wear Test (ASTM D-4172: 40kgf, 150B0C, 1800 rpm, 1 hr) Scar diameter, mm 0.38 0.35 0.4 Total Base Number 12.1 12.1 12 AMSOIL Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD) HDD AMSOIL Synthetic Diesel & Marine Motor Oil SAE 15W-40 AME AMSOIL Synthetic 10W-30/SAE 30 Heavy Duty Diesel Oil ACD HDD AMSOIL Series 3000 100% Synthetic 5W-30 Diesel Oil (HDD) delivers extraordinary lubrication in both diesel and gasoline engines found in commercial, fleet and personal vehicles. By combining the industry.s premier synthetic technology with AMSOIL premium additives, AMSOIL Series 3000 exceeds the higher performance demands of modern engines. It withstands the stress of higher heat, higher acid levels and excessive soot loading found in EGR-equipped engines. AMSOIL Series 3000 Synthetic 5W-30 Heavy Duty Diesel Oil consistently outperforms conventional and synthetic diesel oils for long-lasting performance and protection. AME AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil (AME) is a premium diesel oil providing excellent performance in all types of diesel engines where highly effective control of wear and deposits is vital. Built with heavy-duty dispersant/detergent additives, its 12 TBN chemistry neutralizes acids and controls soot thickening from EGR and blow-by to protect against corrosion, cylinder bore polishing (wear) and varnish/sludge deposits. AMSOIL AME resists heat and breakdown better than conventional petroleum oils for long lasting performance and protection. ACD AMSOIL Synthetic 10W-30/SAE 30 Diesel Oil (ACD) is formulated with premium synthetic base oils that exceed both 10W-30 multi-grade and SAE 30 straight-grade viscosity requirements for outstanding performance in modern and older diesel engines. Unlike conventional SAE 30 motor oils, AMSOIL ACD has a naturally high viscosity index and does not contain paraffin (wax). It has a -36B0F pour point and qualifies for SAE 10W, making it an .all season. multi-grade lubricant with a wide operating temperature range. AMSOIL ACD is formulated without viscosity index improvers (VI). This shear stable formulation stops viscosity loss and associated bearing and cylinder bore wear. AMSOIL ACD contains premium additives with a high 12 TBN to neutralize acids from blow-by, exhaust gas recirculation (EGR) and high sulfur diesel fuels. It protects against damaging piston deposits, ring sticking and sludge. ----- ------------------------------------------------------------------------ Snohomish, Washington -o|||||o- where Jeeps don't rust, they mold http://AMSOIL.com/redirect.cgi?zo=283461 http://creationwiki.org http://johnmeister.com http://wagoneers.com http://fotomeister.us ------------------------------------------------------------------------