{"product_id":"swepco-306-supreme-engine-oil-high-zinc-multi-grade-ci-4-sm","title":"SWEPCO | 306 Supreme Engine Oil | High-Zinc Multi-Grade | CI-4\/SM","description":"\u003ch2\u003eENGINE OIL ENGINEERED FOR LONG DRAIN \u0026amp; HEAVY-LOAD ENGINES\u003c\/h2\u003e\n\u003cp\u003eSWEPCO 306 Supreme Formula Engine Oil is designed for engines that never get a day off—fleet diesels, high-load off-road equipment, and older gasoline or diesel vehicles. With extended drain capability up to \u003cstrong\u003e100,000 miles or 600 hours (LOA Program)\u003c\/strong\u003e, this high-zinc, solvent-refined oil delivers proven wear protection, cleaner combustion, and serious uptime savings.\u003c\/p\u003e\n\u003cp\u003eIdeal for pre-2010 engines without emission systems and trusted across industries from mining to municipal transit.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIMONYL® Anti-Wear Additive\u003c\/strong\u003e\u003cbr\u003eProprietary compound reduces friction under load—protecting cams, bearings \u0026amp; valve trains in high-stress environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolvent-Refined Base Oils (High VI)\u003c\/strong\u003e\u003cbr\u003eCleaner burn, lower volatility, and extreme temperature stability from 100% paraffinic base stock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Drain Intervals (Up to 100,000 Miles)\u003c\/strong\u003e\u003cbr\u003eManufacturer-approved for long oil life. Fewer oil changes = less downtime and lower maintenance costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized for Soot \u0026amp; EGR Engines\u003c\/strong\u003e\u003cbr\u003eOutperforms industry standards in emissions-heavy, high-soot environments like diesel trucks and generators.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold Start \u0026amp; All-Season Viscosity\u003c\/strong\u003e\u003cbr\u003eAvailable in 5W-30, 10W-30, 15W-40, and 20W-50. Flows fast in cold, protects strong in heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Zinc Formula\u003c\/strong\u003e\u003cbr\u003eEngineered for older engines and flat tappet cams. Ideal for classic cars, air-cooled engines, and off-road use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClassic \u0026amp; Vintage Vehicles (European)\u003c\/li\u003e\n\u003cli\u003eOver-the-Road Fleets \u0026amp; Transit Vehicles\u003c\/li\u003e\n\u003cli\u003eConstruction, Mining \u0026amp; Off-Road Equipment\u003c\/li\u003e\n\u003cli\u003eStationary Engines: Pumps, Generators, Compressors\u003c\/li\u003e\n\u003cli\u003eIndustrial Machinery \u0026amp; OEM Diesel Engines\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePerformance Ratings \u0026amp; OEM Approvals:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAPI CI-4 \/ SM \/ SL\u003c\/li\u003e\n\u003cli\u003eCummins CES 20076–20078, M11\u003c\/li\u003e\n\u003cli\u003eCAT ECF-1 \/ 1P \/ 1K \/ 1M-PC\u003c\/li\u003e\n\u003cli\u003eMack EO-M Plus, T-8 to T-9\u003c\/li\u003e\n\u003cli\u003eDetroit Diesel 7SE270\u003c\/li\u003e\n\u003cli\u003eACEA E3 \/ E5 | MIL-PRF-2104G\u003c\/li\u003e\n\u003cli\u003eDaimler-Benz 228.1 \/ 228.3\u003c\/li\u003e\n\u003cli\u003eVolvo VDS-2 \/ VDS-3 | Ford ESE-M2C153E\u003c\/li\u003e\n\u003cli\u003eAllison C-4 | Global DHD-1\u003c\/li\u003e\n\u003cli\u003eCCMC G4, G5, D4, D5, PD-2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eVehicle Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW (1967–1981):\u003cbr\u003e1600, 1602, 1800, 1802, 2000, 2002, 2000tii, 2002tii, 2500, 2800, 3.0CS, 3.0CSi, 3.0CSL, Bavaria, E12 5-Series, 530i\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz (1955–1989):\u003cbr\u003e190, 190D, 190SL, 200, 220, 220S, 220SE, 230, 230SL, 240, 250, 250C, 250SE, 250SL, 280, 280C, 280S, 280SE, 280SL, 280SEL, 300SEL, 350SL, 450SL, 450SLC, 450SE, 450SEL (Gas only)\u003c\/li\u003e\n\u003cli\u003ePorsche (1956–1995):\u003cbr\u003e356 (A, B, C, SC), 911 (L, S, T, E, SC, Carrera), 912, 912E, 914, 924, 924 Turbo, 924S, 944, 968, 930 Turbo\u003c\/li\u003e\n\u003cli\u003eVolkswagen (1950–1984):\u003cbr\u003eBeetle, Super Beetle, Karmann Ghia, Fastback, Squareback, Thing, Type 2 Transporter, Campmobile, Kombi, Rabbit Mk1, Scirocco Mk1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAvailable Viscosities:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5W-30\u003c\/li\u003e\n\u003cli\u003e10W-30\u003c\/li\u003e\n\u003cli\u003e15W-40\u003c\/li\u003e\n\u003cli\u003e20W-50\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/VFeSTvohf94?si=PDLB7GSGtzS1aCes\u0026amp;start=856\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eDrain Interval Advisory:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor heavy-duty equipment, SWEPCO recommends continuous engine oil analysis and timely filter changes to safely reach extended drain intervals of up to 100,000 miles or 600 hours.\u003c\/li\u003e\n\u003cli\u003eFor passenger vehicles, follow your OEM’s recommended oil change schedule—just know SWEPCO 306 offers superior engine protection compared to conventional oils. That means fewer issues, better performance, and long-term savings for your vehicle or fleet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center; font-weight: bold; font-size: 1.2em;\"\u003eREADY FOR 100,000 MILES OF CONFIDENCE — ORDER SWEPCO 306 NOW\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003c!-- SEO META FIELDS --\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003c!-- Slug: swepco-engine-oil-306-ci4-high-zinc-long-drain --\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e","brand":"DRIVEN | Racing Shop","offers":[{"title":"5W30 \/ Bulk Bin - 275 GALLONS","offer_id":50562156986530,"sku":"306-5W30-BIN","price":8531.74,"currency_code":"USD","in_stock":false},{"title":"5W30 \/ Cs 24Qt","offer_id":50562157019298,"sku":"306-5W30-C3F","price":228.04,"currency_code":"USD","in_stock":true},{"title":"5W30 \/ Cs 6-1Gal","offer_id":50562157052066,"sku":"306-5W30-C5B","price":223.04,"currency_code":"USD","in_stock":true},{"title":"5W30 \/ Drum - 55 GAL \/400 LBS","offer_id":50562157084834,"sku":"306-5W30-DRM","price":1771.06,"currency_code":"USD","in_stock":true},{"title":"5W30 \/ Keg - 35 GAL \/ 255 LB","offer_id":50562157117602,"sku":"306-5W30-KGU","price":542.04,"currency_code":"USD","in_stock":false},{"title":"10W30 \/ Bulk Bin - 275 GALLONS","offer_id":50562157150370,"sku":"306-10W30-BIN","price":8531.74,"currency_code":"USD","in_stock":false},{"title":"10W30 \/ Cs 24Qt","offer_id":50562157183138,"sku":"306-10W30-C3F","price":228.04,"currency_code":"USD","in_stock":true},{"title":"10W30 \/ Cs 6-1Gal","offer_id":50562157215906,"sku":"306-10W30-C5B","price":223.04,"currency_code":"USD","in_stock":true},{"title":"10W30 \/ Drum - 55 GAL \/400 LBS","offer_id":50562157248674,"sku":"306-10W30-DRM","price":1771.06,"currency_code":"USD","in_stock":false},{"title":"10W30 \/ Keg - 35 GAL \/ 255 LB","offer_id":50562157281442,"sku":"306-10W30-KGU","price":542.04,"currency_code":"USD","in_stock":false},{"title":"15W40 \/ Bulk Bin - 275 GALLONS","offer_id":50562157314210,"sku":"306-15W40-BIN","price":8531.74,"currency_code":"USD","in_stock":true},{"title":"15W40 \/ Cs 24Qt","offer_id":50562157346978,"sku":"306-15W40-C3F","price":228.04,"currency_code":"USD","in_stock":false},{"title":"15W40 \/ Cs 6-1Gal","offer_id":50562157379746,"sku":"306-15W40-C5B","price":223.04,"currency_code":"USD","in_stock":true},{"title":"15W40 \/ Drum - 55 GAL \/400 LBS","offer_id":50562157412514,"sku":"306-15W40-DRM","price":1771.06,"currency_code":"USD","in_stock":true},{"title":"15W40 \/ Keg - 35 GAL \/ 255 LB","offer_id":50562157445282,"sku":"306-15W40-KGU","price":542.04,"currency_code":"USD","in_stock":true},{"title":"15W40 \/ Pail - 5 GAL \/ 35 LB","offer_id":50562157478050,"sku":"306-15W40-PAL","price":173.6,"currency_code":"USD","in_stock":false},{"title":"20W50 \/ Cs 24Qt","offer_id":50562157510818,"sku":"306-20W50-C3F","price":228.04,"currency_code":"USD","in_stock":true},{"title":"20W50 \/ Cs 6-1Gal","offer_id":50562157543586,"sku":"306-20W50-C5B","price":223.04,"currency_code":"USD","in_stock":true},{"title":"20W50 \/ Drum - 55 GAL \/400 LBS","offer_id":50562157576354,"sku":"306-20W50-DRM","price":1771.06,"currency_code":"USD","in_stock":true},{"title":"20W50 \/ Keg - 35 GAL \/ 255 LB","offer_id":50562157609122,"sku":"306-20W50-KGU","price":542.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0409\/5754\/2562\/files\/IMG_3614.jpg?v=1790946784","url":"https:\/\/shop.equipmentshare.com\/products\/swepco-306-supreme-engine-oil-high-zinc-multi-grade-ci-4-sm","provider":"EquipmentShare Parts Store","version":"1.0","type":"link"}