35,000+ results for additive
- TriboTEX Oil Additive: Treatment for Engine & Oil Automotive, with NanoparticlesOpens in a new window or tabFACTORY DIRECT - OIL ADDITIVEBrand New$97.99Free shippingFree returns699 soldtribotex (2,400) 99.8%
- Opti-Lube XPD Diesel Fuel Additive: 1 Gallon without AccessoriesOpens in a new window or tabBrand New$82.37Free shipping200 soldopti-lube (444) 99.1%
- BG 44K PLATINUM Fuel System Cleaner Additive 11oz Can PN 208 Free Funnel 12 PackOpens in a new window or tabBrand New$229.00Free shippingSave up to 5% when you buy moredistinctyachts (1,606) 99.5%
- REV X ZDDP Zinc & Phosphorus (5) - Engine Oil Additive - Restore the ProtectionOpens in a new window or tabBrand New$39.95Free 2-4 day shippingFree returns1,636 soldTop Rated Plusrevxoil (3,430) 99.4%
- Liqui Moly CeraTec Friction Modifier Oil Additive 300 ML Protection Ceramic WearOpens in a new window or tabBrand New5 product ratings - Liqui Moly CeraTec Friction Modifier Oil Additive 300 ML Protection Ceramic Wear$24.49Free shippingthealaskapicker (1,517) 100%
- Lucas Oil 10003 Fuel Injector Cleaner 1 Quart Automotive Additive FAST SHIPPINGOpens in a new window or tabBrand New$11.18Free shipping459 sold166auto (4,650) 99%
- Lucas Oil 10063, TB Zinc-Plus Engine Break-In Oil Additive, 16 OZ. BottleOpens in a new window or tabBrand New$15.86Free shippingFree returns884 soldTop Rated Plusrace_choice (22,585) 99.7%
- REV X ZDDP Zinc & Phosphorus - Engine Oil Additive - Restore the ProtectionOpens in a new window or tabBrand New$11.95Free 2-4 day shippingFree returns1,707 soldSave up to 27% when you buy moreTop Rated Plusrevxoil (3,430) 99.4%
Picked For You
Sponsored | Top selling items from highly rated sellers with free shipping- ✅ Liqui Moly 20004 Hydraulic Lifter Additive (300ml)Opens in a new window or tabBrand New$15.99Free shipping337 soldoempartsplanet (626) 98.9%
- ZDDPlus ZDDP Engine Oil Additive Restores Zinc Every Oil Change. 5 Pack DiscountOpens in a new window or tabBrand New$39.74Free shippingFree returns1,438 soldTop Rated Plusoldbuickparts (34,084) 99%
- DT 550 Friction Reducer Oil Additive, 16 Oz. Pint, Free Shipping!Opens in a new window or tabBrand New$26.99Free shipping65 soldthe_warehousing_center (649) 99.3%
- Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 20Opens in a new window or tabBrand New$12.95Free shippingAlmost gone15 soldSave up to 5% when you buy moreuzmshahi_0 (87) 100%
- BG 44K PLATINUM New Fuel System Cleaner Additive 11oz. Can PN 208 2 PackOpens in a new window or tabBrand New$41.95Free shipping484 soldSave up to 5% when you buy morehorsesntorque (1,909) 99.9%
- Archoil AR9100 1 Gallon Friction Modifier - Oil Additive - All VehiclesOpens in a new window or tabFAST AND FREE SHIPPING DIRECT FROM ARCHOILBrand New$229.95Free shipping438 soldarchoil (6,514) 99.8%
- Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive: 8 Pack of 4oz BottlesOpens in a new window or tabBrand New$40.90Free shipping58 soldopti-lube (444) 99.1%
- BG 44K PLATINUM New Fuel System Cleaner Additive 11oz. Can PN 208 - 5 PackOpens in a new window or tabBrand New$99.99Free shipping43 solddistinctyachts (1,606) 99.5%
- Lucas 10063 TB Zinc-Plus Engine Break-In Oil Additive High-Zinc 16 Oz. (Qty 1)Opens in a new window or tabBrand New$15.89Free shipping113 sold166auto (4,650) 99%
- Yamaha Ring Free Fuel Additive 12ozOpens in a new window or tabBrand New$21.97Free shipping5 watchersmichaejorda-769 (66) 100%
- BG 44K PLATINUM New Fuel System Cleaner Additive 11oz. Can PN 208 Free ShippingOpens in a new window or tabBrand New$23.15Free shippingFree returns1,329 soldhorsesntorque (1,909) 99.9%
- Yamaha Yamalube ACC-RNGFR-PL-12 Ring Free Plus Fuel AdditiveOpens in a new window or tabBrand New$21.89Free shipping225 soldjorgensenpowersports (5,627) 99.1%
- Liqui Moly Ceratec Oil Additive (1) 300ml Can LM20002 3721Opens in a new window or tabBrand New$25.00Free 2-3 day shippingwashmyshoes (3,849) 99.1%
- DT 550 Friction Reducer Oil Additive, 1 Quart, Free Shipping!Opens in a new window or tabBrand New$44.95Free shipping15 watchersthe_warehousing_center (649) 99.3%
- Liqui Moly CeraTec Friction Modifier Oil Additive Protection Ceramic Wear 300MLOpens in a new window or tabBrand New$29.99Free shippingautolubegroup1 (19) 100%
- XADO 1 Stage Maximum Engine Oil Additive - Protects Engine from Wear and TearOpens in a new window or tabOriginal XADO Direct US Seller IN STOCK Fast ShippingBrand New$49.49Free shipping117 soldSave up to 15% when you buy morexado_us (1,796) 98.8%
- Lucas Oil 10002 Heavy Duty Oil Stabilizer One Gallon Jug Automotive AdditiveOpens in a new window or tabBrand New$31.00Was: $32.986% offFree shippingAlmost gone40 sold993232maoyi (545) 98.1%
- Charge-It CH-77 Battery Additive - 2 Oz.Opens in a new window or tabBrand New$10.00Free shippingFree returns180 soldTop Rated Plusjb-tools (528,771) 99.3%
- Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 20Opens in a new window or tabBrand New$16.43Free shipping13 soldinfusionkey (884) 99.5%
- Archoil AR9100 16oz Friction Modifier - Oil Additive - PowerStroke FixOpens in a new window or tabFAST AND FREE SHIPPING DIRECT FROM ARCHOILBrand New$44.95Free shipping4,374 soldarchoil (6,514) 99.8%
- DT 550 Friction Reducer Oil Additive, 1 Gallon, Free Shipping!Opens in a new window or tabBrand New$107.95Free shipping25 soldSave up to 10% when you buy morethe_warehousing_center (649) 99.3%
- Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive: 1 Gallon without AccessoriesOpens in a new window or tabBrand New$67.76Free shipping225 soldopti-lube (444) 99.1%
- HAPCO - 32 oz. Lead Substitute Fuel Additive - TREATS UP TO 50 GALLONSOpens in a new window or tabBrand New$34.99Free 2-3 day shippingFree returns122 soldSave up to 40% when you buy moreTop Rated Plushapco-products (2,077) 96%
- Lubegard Transmission Fluid Additive Instant Shudder Fixx (2 fl oz. Tube)Opens in a new window or tabBrand New$14.99Free shippingSave up to 20% when you buy moremarvelautomotive (997) 98.4%
- Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 20Opens in a new window or tabBrand New$12.85Free shippingFree returnsAlmost gone11 soldprism_inc (110) 99.1%
- BG EPR engine performance restoration and BG MOA Oil Additive Kit FREE SHIPPINGOpens in a new window or tabBrand New$27.00Free shippingwild_773 (36) 100%
- RedLine- Engine Oil Break-In Additive - 16 oz. -PN: 81403Opens in a new window or tabBrand New$22.99Free 2-4 day shippingFree returnsTop Rated Plushoerrracing (60,784) 99.6%
- Wax Additive - 4 oz Surfacing Agent for use with Gelcoat and Polyester resinsOpens in a new window or tabBrand New$16.99Free shippingFree returns1,002 soldTop Rated Plusfiberglasssupplydepot (8,366) 99.7%
- Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive - 64 OZ - NEWOpens in a new window or tabBrand New$40.86Free shippingmount-19 (1) 66.7%
- System 48 Engine AdditiveOpens in a new window or tabBrand New$2.00+$7.57 shippingcheput55 (18) 100%
- BG 44K PLATINUM Fuel System Cleaner Additive 11oz. Can PN 208 Free Funnel 3 PackOpens in a new window or tabBrand New$61.00Free shipping637 soldSave up to 5% when you buy morehorsesntorque (1,909) 99.9%
- Hot Shot's Secret Diesel Extreme Diesel Fuel AdditiveOpens in a new window or tabBrand New$18.97Free shippingFree returnsAlmost gone15 soldxokd962 (1,342) 97.5%
- Genuine GM ACDelco Limited Slip Axle Lubricant Additive 4oz 88900330Opens in a new window or tabBrand New$11.95Free shipping566 soldSave up to 5% when you buy morehga_performance (30,557) 98.8%
- JEEP DODGE LIMITED SLIP ADDITIVE FRICTION MODIFIER LUBRICANT SET OF 2Opens in a new window or tabNEW OEM PARTS. TRUSTED FOR 17+ YEARS! QUIRKPARTSBrand New$19.94Free shippingAlmost gone726 soldquirkparts (981,192) 98.8%
- Race Gas Race Fuel Concentrate Fuel Additive 100016; 16oz Octane Booster 105 MAXOpens in a new window or tabBrand New$22.99Free shippingFree returnsSave up to 5% when you buy moreTop Rated Plusquartermileconcepts (3,327) 100%
- 10 ZDDPlus ZDDP Engine Oil Zinc Additive - Save your Engine!Opens in a new window or tabBrand New$93.99Free shipping322 soldabcdirectautoparts (19,829) 98.2%
- 2X ZDDPlus ZDDP Engine Oil Additive Restores Zinc Every Oil Change | 2 BottlesOpens in a new window or tabBrand New$26.99Free shippingFree returnsTop Rated Plusoldbuickparts (34,084) 99%
- ATP ST-1014 Motor Oil Additive Zinc Additive High Zinc 15ozOpens in a new window or tabBrand New$14.94Free shipping3 watcherscurbhoppers (6,407) 98.5%
- Howards Cams Inc Engine Oil Additive 99000; ZPM Break-In, 4oz Cam Break-InOpens in a new window or tabPerformanceParts - Right Parts, Right Price, Right AwayBrand New$15.14Free shipping78 soldperformancepartsracing (112,377) 99.7%
- Liqui Moly 20004 Hydraulic Lifter Additive - 300ML (Pack of 2) 600ML TotalOpens in a new window or tabBrand New$29.95Free 2-4 day shippingAlmost gone54 sold$5 off $200+ with couponbold_auto_parts (27,972) 98.8%
- 20g KolorEFX Pearl Pigment Paint Additive for Art Polish Epoxy Resin PlastidipOpens in a new window or tabBrand New$8.49 to $10.49+$5.25 shipping107+ soldkolorefx (7,033) 100%
- BMW Genuine OEM Twin Power Turbo Additive Pe 83-19-5-A07-750Opens in a new window or tabOTHERBrand New$14.72Free shipping109 soldbmwofatlanticcity (20,950) 99.8%
- TriboTEX Small Oil Additive Engine Treatment: Add to Engine Oil - Makes High MilOpens in a new window or tabBrand New$68.99Free shipping75 watcherstoolntech (10,441) 96%
- Liquid Horsepower Fuel Additive (LHP) - 6oz treats 30 gallons of gasolineOpens in a new window or tabBrand New$17.95+$5.00 shipping152 soldmante-debbi (636) 100%
- Comp Cams 159 12 oz Engine Zinc ZDDP Break-In Oil Additive LubeOpens in a new window or tabBrand New$19.99Free shippingFree returns1,570 soldTop Rated Plusamsracing (44,721) 99.8%
- Lucas Oil 10002 Heavy Duty Oil Stabilizer One Gallon Jug Automotive AdditiveOpens in a new window or tabBrand New$28.03Free shippingLast one21 soldhuayu-4758 (1,008) 97.9%
- DR TRANNY LUBEGARD TRANSMISSION INSTANT SHUDDER FIX FIXX SYNTHETIC ADDITIVEOpens in a new window or tabBrand New$11.90Free shipping983 soldSave up to 10% when you buy morekressautochris (38,144) 99.9%
- One New LIQUI MOLY Fuel Additive 2002Opens in a new window or tabBrand New$11.36Free shipping52 sold166auto (4,650) 99%
- ( 2 Pack ) Ethanol Shield 8 oz. Fuel Additive StabilizerOpens in a new window or tabBrand New$17.99Free shippingoceansandskies (68) 100%
- Power Plus 19769-32 Fuel Additive Fuel Fragrance Groovy Grape ScentOpens in a new window or tabBrand New$16.99Free shipping1,942 soldSave up to 10% when you buy morenorthbranchsynthetics (13,090) 97.9%
- Motorcraft additive XL-3 4 oz. , free shipping !Opens in a new window or tabBrand New$12.95Free shippingSave up to 20% when you buy more4vlodke (18,089) 99.7%
- Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 20Opens in a new window or tabBrand New$11.99Free shippingw46vm_90 (11) 91.7%
- High Performance Zinc Replacement Oil Additive - 12 Oz. (Pack of 4)Opens in a new window or tabBrand New$21.19Free shippingFree returnsdiscount.dynasty (18) 87.5%
- Flood Interior/Exterior Floetrol Additive - 1GalOpens in a new window or tabBrand New$15.000 bids · Time left3d 3h left (Tue, 09:05 AM)$19.50Buy It NowFree shippingmaplehillmolly (481) 100%
- Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 20Opens in a new window or tabBrand New$12.05Free shipping4 watcherslynevenmarie (90) 100%
- New ListingLiqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 20Opens in a new window or tabBrand New$12.94Free shippingfrom Pakistanmah-90-5 (2) 100%
- Wella Color Toner & Additive 1.42 oz (Pick your color)Opens in a new window or tabBrand New$7.95Free shippingFree returns1,414+ soldSave up to 10% when you buy moreTop Rated Plusluv4everbeauty (10,498) 99.7%
- Mechanic in a Bottle Synthetic Fuel Additive for all Gasoline Engines 24 oz.Opens in a new window or tabBrand New$18.45Free shippingFree returns5 watchersvorand (242) 100%
- Stanadyne Performance Formula Diesel Fuel Additive - 1/2 Gallon - Part # 38566Opens in a new window or tabSouthwest Diesel - Authorized DistributorBrand New$44.00Free shipping683 soldSave up to 6% when you buy morediesel_since1954 (4,300) 99.7%
- Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz.Opens in a new window or tabBrand New$13.39Free shipping52 sold166auto (4,650) 99%
- Stanadyne Performance Formula Diesel Fuel Additive - 24 PK of 1/2 Pints # 38564Opens in a new window or tabSouthwest Diesel - Authorized DistributorBrand New$140.00Free shipping250 soldSave up to 5% when you buy morediesel_since1954 (4,300) 99.7%
- Sherwin-Williams Urethane Flexible Additive - Pint V6V299Opens in a new window or tabBrand New$17.64+$6.00 shippingkenwardii (283) 95.1%
- Flood Penetrol Oil-Based Paint Additive Conditioner, 1 Qt. FLD4 04 FloodOpens in a new window or tabBrand New$21.43Free shippingtrimaxstore (5) 85.7%
- REPACKAGED Mobius & Kluber Watchmaking Oils & Greases - USA SELLEROpens in a new window or tabNew (Other)$5.99 to $99.99+$4.36 shippingExtra 5% off with couponds_watch_shop_and_supply (1,038) 100%
- Racegas 100032 Case of 3 Cans of Competition Race Fuel Concentrate Additive 32ozOpens in a new window or tabBrand New$96.39Free 2-4 day shippingFree returnsTop Rated Plushoerrracing (60,784) 99.6%
- BG 44K PLATINUM New Fuel System Cleaner Additive 11oz. Can PN 208 - 5 PackOpens in a new window or tabBrand New$95.50Free shipping312 soldSave up to 10% when you buy morehorsesntorque (1,909) 99.9%
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