{"product_id":"bg-bg109-compression-engine-performance-restore-11-oz-restores-compression-dissolves-piston-ring-deposits","title":"BG BG109 Compression Engine Performance Restore (11 oz) — restores compression, dissolves piston-ring deposits","description":"\u003cp\u003e\u003cstrong\u003eBG109 Compression Engine Performance Restore (BG EPR) is an 11 oz. treatment designed to soften and remove stubborn oil and piston-ring deposits to help regain lost compression and improve engine smoothness.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBG EPR (originally BG 109) is a concentrated engine treatment used during oil service that targets hardened deposits and micro-contaminants inside the crankcase and ring area. Introduced in 2005 and continually refined, this formula is intended to dissolve the varnish and sludge that restrict ring movement and block micro passageways in modern engines, helping restore more uniform compression across cylinders when combined with normal maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eHow does BG EPR help engines that sound rough or low on power?\u003c\/h3\u003e\n\u003cp\u003eThe product works by softening baked-on deposits on piston rings and cylinder walls so those rings can reseat and restore compression. It also helps clear micro passageways that affect hydraulic actuators and turbochargers, improving responsiveness and reducing noise.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDissolves hardened sludge and varnish on rings and pistons\u003c\/li\u003e\n  \u003cli\u003eSupports improved ring sealing for better compression\u003c\/li\u003e\n  \u003cli\u003eHelps reduce valve-train and lifter noise by clearing passages\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen and how should BG109 be applied during service?\u003c\/h3\u003e\n\u003cp\u003eBG EPR is added during an oil change as part of the service procedure; typical results are seen after one or two oil changes when deposits have been loosened and expelled. Technicians clean accessible covers, add the treatment to the fresh oil, then complete regular filter and oil replacement steps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse during an oil change; compatible with routine service intervals\u003c\/li\u003e\n  \u003cli\u003eBest results often observed after two consecutive oil changes with treatment\u003c\/li\u003e\n  \u003cli\u003eFollow normal disposal and safety precautions for used oil and filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat measurable improvements can a technician expect after using BG EPR?\u003c\/h3\u003e\n\u003cp\u003eIndependent before-and-after compression tests have shown increased compression values and improved balance between cylinders on many vehicles. Technicians report smoother idle, reduced knock or diesel-like noise, and restored drivability in engines previously considered for replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDocumented rise in compression readings on affected engines\u003c\/li\u003e\n  \u003cli\u003eImproved balance between low and high cylinders\u003c\/li\u003e\n  \u003cli\u003eNoticeable reduction in engine noise and roughness\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there engine types or conditions where BG EPR is most effective?\u003c\/h3\u003e\n\u003cp\u003eBG EPR is formulated for modern gasoline and light-duty engines that have experienced deposit buildup from extended oil intervals or contaminated oil. It is particularly useful when rings are sticky or when hydraulic components are impaired by varnish, though severely mechanically damaged engines may require additional repair.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEffective on engines with varnish, sludge, or sticky rings\u003c\/li\u003e\n  \u003cli\u003eHelpful for engines affected by prolonged oil-change intervals\u003c\/li\u003e\n  \u003cli\u003eNot a replacement for mechanical repairs on physically damaged components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: BG109 BG EPR is aimed at professional technicians, independent shops, and knowledgeable DIYers performing oil service who need a concentrated chemical solution to tackle stubborn internal deposits. It is a useful, cost-effective option when compression loss and deposit-related drivability issues are suspected, offering a potential alternative to more invasive and expensive engine repairs.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eContains the latest production date stamped on the bottom of the can\u003c\/li\u003e\n  \u003cli\u003eCleans critical micro passageways affecting valve actuators and turbochargers\u003c\/li\u003e\n  \u003cli\u003eHelps prevent excessive oil loss by addressing ring seal issues\u003c\/li\u003e\n  \u003cli\u003eSoftens and dissolves hard-to-remove piston-ring deposits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eBG109 Compression Engine Performance Restore BG EPR\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long until I see results after using BG EPR?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Many technicians notice improvement after the first oil change, with clearer benefits often after two consecutive oil changes using BG EPR.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can BG109 replace mechanical repairs for low compression?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: BG EPR can restore compression caused by deposits, but it cannot fix mechanical damage like scored cylinders or broken components.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BG","offers":[{"title":"Default Title","offer_id":67591930052793,"sku":"B00IAPLIDK","price":57.9,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/bg109-front-can-bg-epr.jpg?v=1790560230","url":"https:\/\/redleafauto.ca\/products\/bg-bg109-compression-engine-performance-restore-11-oz-restores-compression-dissolves-piston-ring-deposits","provider":"Redleaf Auto","version":"1.0","type":"link"}