Below you will find the best synthetic oil for a 2003 Kia OPTIMA. Maximize your vehicle's potential with 100% full synthetic oil that is made in the USA! For more than the past 50 years, AMSOIL has perfected the art of maximizing efficiency and engine life. The advanced synthetic formulas deliver superior protection from heat, friction, and wear, keeping engines as good as new for miles. Upgrade to AMSOIL today and experience better performance, reliability, and reduced oil consumption. Click add to cart for more details. Sign up as a preferred customer and get discounts and more! The oil type, capacity and oil filter (if available) are listed below and verified for accuracy. Upgrade now!
Recommended oil for my 2003 Optima
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Premium Protection 10W-40 Synthetic Motor Oil | Protect your vehicle with the world's best synthetic oil for your Optima! | With filter 4.5 quarts After refill check oil level. |
AMOQT-EA
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| XL 10W-40 Synthetic Motor Oil | Protect your Optima now with Amsoil products! Made in USA! | With filter 4.5 quarts After refill check oil level. |
XLOQT-EA
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Recommended oil filters for my 2003 Optima
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL Ea Oil Filters | This is the best oil filter for your 2003 Kia Optima and is designed to last up to 25k (normal conditions) or 15k miles (severe conditions) or 1 year, whichever comes first. |
EA15K20-EA
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| WIX Oil Filter | WIX oil filter change intervals for your 2003 Kia Optima are extended OEM recommendations to match the drain intervals of AMSOIL XL Motor oil. (12,000 miles or 1 year, whichever comes first). |
51334-EA
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Recommended fuel Filters for my 2003 Optima
| Product Name | Product Description | Product |
|---|---|---|
| WIX Fuel Filters | Superior fuel cleansing for your 2003 Kia Optima and it will prevent pump wear, injector clogging, premature engine wear while helping boost your Optima's fuel economy! |
33319-EA
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Recommended transmission fluids for my 2003 Optima
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| Manual Transmission & Transaxle Gear Lube 75W-90 | Manual Transmission Fluid |
N/A (5-SPD) 4.4 pints | This synthetic manual transmission and transaxle gear lube is made to protect from friction and keep viscosity for extended component and fluid life. You will get smooth and fast performance from synchronizers and gears. Enjoy quick and smooth shifting. It is made to exceed protection under severe conditions and it blows the doors off of regular fluids which are limited in protection. Protect your 2003 Kia Optima. |
MTGPK-EA
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| SEVERE GEAR® 75W-90 | Manual Transmission Fluid |
N/A (5-SPD) 4.4 pints | This special formula is made for harsh operating conditions that pick-up trucks endure. Also top-notch protection for SUVs, heavy equipment, and other heavy-duty vehicles. Made in the USA. |
SVGPK-EA
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| SEVERE GEAR® 75W-110 | Manual Transmission Fluid |
N/A (5-SPD) 4.4 pints | This is a fantastic lubricant for towing trailers, heavy duty hauling, off road driving/4x4, commercial applications, and for race enthusiasts. This severe gear lube will protect bearings, gears from friction and exceeds performance of any regular gear oil out there! Keep your truck or vehicle out of the shop and avoid costly repairs with this made in the USA lube. |
SVTPK-EA
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| SEVERE GEAR® 80W-90 | Manual Transmission Fluid |
N/A (5-SPD) 4.4 pints | This lube is made to exceed the requirements of equipment and all vehicles that require SAE 80W-90 viscosity. It is made with synthetic base oils and top additives without adding any wax. Amsoil Severe Gear is solid against thermal breakdown. Will give you awesome protection for bearings and gears and tough against heat which will help extend the life of your equipment and avoid costly repairs. Made in the U.S.A. |
AGLPK-EA
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| Signature Series Multi-Vehicle Synthetic Automatic Transmission Fluid | Automatic Transmission Fluid |
4 speed F4A42 Total Fill 8.2 quarts | Amsoil's Signature Series Multi-Vehicle Synthetic automatic transmission fluid is made to blow the doors off any regular or conventional ATF fluids on the market and our oil surpasses the performance needs of most vehicles. Protect your transmission and avoid costly repairs. This fluid has an advanced formula to give awesome top-notch protection under harsh operating conditions. Transmission repairs are expensive so protect your vehicle with this great fluid! |
ATFPK-EA
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| OE Multi-Vehicle Synthetic Automatic Transmission Fluid | Automatic Transmission Fluid |
4 speed F4A42 Total Fill 8.2 quarts | Outsanding protection and resists varnish! Change interval based on your Optima's recommendation. |
OTFQT-EA
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Transmission filters
| Product Name | Product Description | Product |
|---|---|---|
| WIX Oil Filter | WIX oil filter change intervals for your 2003 Kia Optima are extended OEM recommendations to match the drain intervals of AMSOIL XL Motor oil. (12,000 miles or 1 year, whichever comes first). |
51064-EA
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Recommended coolants for my Kia Optima
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Passenger Car & Light Truck Antifreeze & Coolant | maximum protection for your 2003 Kia Optima under extreme temperatures and operating conditions! Lasts up to 150,000 miles or five years! (whichever comes first) |
ANTPC1G-EA
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|
| Low Toxicity Antifreeze and Engine Coolant | Lasts in your 2003 Kia Optima for up to 150,000 miles or five years! (whichever comes first). Biodegradable! |
ANT1G-EA
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Amsoil transmission fluid is a great choice for vehicle owners seeking the best performance. It comes with an advanced formula that effectively reduces wear and tear, providing you with enhanced wear control. This high-quality fluid delivers unparalleled fuel efficiency and transmission efficiency, even in the toughest driving conditions. It is a wise investment for car owners aiming to keep their cars running smoothly and prolong transmission life since replacing a transmission can be expensive. With exceptional high thermal breakdown resistance, it offers unparalleled protection for your transmission in extreme environments. Choose Amsoil transmission fluid for unbeatable quality and complete peace of mind. Please check above to see if your vehicle has a compatible transmission fluid since this page displays all products for your vehicle. Thanks for using our lookup guide!
