{"product_id":"shell-rotella-t1-sae-40-diesel-engine-oil-5l-550054467","title":"Shell Rotella T1 SAE 40 Diesel Engine Oil 5L | 550054467","description":"\u003ch2\u003eShell Rotella T1 SAE 40 Diesel Engine Oil — 5L\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 550054467 (Shell Rotella)\u003c\/p\u003e\n\u003cp\u003eShell Rotella T1 SAE 40 is a straight-grade heavy-duty engine oil for diesel and mixed-fleet applications where an SAE 40 monograde oil is specified. It meets \u003cstrong\u003eAPI CF\/SL\u003c\/strong\u003e performance standards and is formulated to protect against wear, deposits, and oil thickening under sustained heavy-duty service. The 5L container suits scheduled oil changes on marine auxiliary engines, generators, industrial engines, and older diesel equipment.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eViscosity grade:\u003c\/strong\u003e SAE 40 (straight-grade \/ monograde)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPI rating:\u003c\/strong\u003e CF\/SL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer size:\u003c\/strong\u003e 5L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 550054467\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIntended Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOlder diesel engines specifying SAE 40 monograde oil\u003c\/li\u003e\n\u003cli\u003eMarine auxiliary engines and generators where a straight-grade oil is required\u003c\/li\u003e\n\u003cli\u003eIndustrial engines and equipment with API CF\/SL oil requirements\u003c\/li\u003e\n\u003cli\u003eMixed-fleet equipment where SAE 40 monograde is the manufacturer-specified viscosity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment \/ Application Notice\u003c\/h3\u003e\n\u003cp\u003eAlways confirm the required oil viscosity grade and API specification in the engine or equipment service manual before use. \u003cstrong\u003eDo not substitute SAE 40 monograde oil for a multi-grade oil\u003c\/strong\u003e (such as 15W-40) unless the manufacturer explicitly allows the interchange. Modern engines designed for multi-grade oils are not well served by a straight-grade monograde.\u003c\/p\u003e\n\n\u003ch3\u003eService Interval\u003c\/h3\u003e\n\u003cp\u003eFollow the engine or equipment manufacturer’s recommended oil change interval. For marine engines and generators, annual service or service by hours (whichever comes first) is the most common schedule. Always replace the oil filter at each oil change where a filter is fitted.\u003c\/p\u003e\n\n\u003ch3\u003eOil Change Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWarm the engine before draining to improve oil flow and help suspend contaminants\u003c\/li\u003e\n\u003cli\u003eDrain fully and allow time for oil to clear before refilling\u003c\/li\u003e\n\u003cli\u003eReplace the oil filter at each change where one is fitted\u003c\/li\u003e\n\u003cli\u003eFill only to the manufacturer’s specified capacity — overfilling can cause foaming and seal damage\u003c\/li\u003e\n\u003cli\u003eRun the engine briefly after refilling, then shut down and recheck the level\u003c\/li\u003e\n\u003cli\u003eDispose of used oil responsibly at an approved recycling facility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11120080715812\"\u003eShell Rotella T1 SAE 30 Diesel Engine Oil, 5L — 550054460\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11120080453668\"\u003eShell Rotella T4 Triple Protection 15W-40, 9.5L — Case of 2\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11120080519204\"\u003eShell Rotella T4 Triple Protection 15W-40, 5L — Case of 3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11120080551972\"\u003eShell Rotella T4 Triple Protection 15W-40, 208.2L (Drum)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11120080683044\"\u003eShell Rotella T4 Triple Protection 15W-40, 946mL — Case of 6\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11120080584740\"\u003eShell Rotella T6 Full Synthetic 5W-40, 5L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11120080650276\"\u003eShell Rotella T6 Full Synthetic 5W-40, 18.9L — 550046217\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eRotella T1 SAE 40 is the right choice for older diesel engines — particularly marine auxiliary engines, generators, and industrial equipment — where the manufacturer specifically calls for a straight-grade SAE 40 oil and an API CF\/SL rating. It is commonly used during seasonal recommissioning and annual service on legacy diesel installations.\u003c\/p\u003e\n\u003cp\u003eThe most common issue is customers ordering a monograde oil when their engine actually requires a multi-grade such as 15W-40. Always check the engine service manual for the viscosity and API specification — the two are not interchangeable. If the manual calls for SAE 40 straight-grade, this is the correct product. If it calls for 15W-40, see the \u003ca href=\"\/products\/11120080453668\"\u003eShell Rotella T4 15W-40\u003c\/a\u003e range instead.\u003c\/p\u003e","brand":"BTB","offers":[{"title":"Default Title","offer_id":43563780112420,"sku":"550054467","price":50.62,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/shopping_e8ea1628-604e-4282-8a06-38d08da31cdf.webp?v=1778778953","url":"https:\/\/marisolmarine.com\/products\/shell-rotella-t1-sae-40-diesel-engine-oil-5l-550054467","provider":"Marisol Marine Company","version":"1.0","type":"link"}