AMSOil Signature Series 5W30 Synthetic Engine Oil OIL 3.78L

Amsoil Signature Series 5w-30 Engine Oil 3.78L

£62.84 inc. VAT

Available to order — 2 due on 02/05/2024 | 1 more incoming

Protects Against Engine Wear

AMSOIL Signature Series Synthetic Engine?Oil develops a strong fluid film that keeps metal surfaces separated while its robust anti-wear additives further reduce wear in metal-to-metal contact regions for maximum engine life. The Sequence IVA Engine Test, which must be passed to meet the industry-standard API SN specification, simulates extended periods of stop-and-go driving. For 100 hours, the test engine cycles between 50 minutes of idling and 10 minutes of elevated rpm ? conditions that encourage engine wear. The camshaft is then measured for wear in 84 locations and an average score is determined. We used Signature Series 0W-20, the lightest viscosity in the line, to further increase the severity of the test. AMSOIL Signature Series Synthetic Engine?Oil provided?75 percent more engine protection against horsepower loss and wear¹?than required by the industry standard, extending the life of vital components like pistons and cams.

After rigorous third-party testing, the cam lobes show little-to-no wear.

SEQUENCE IVA ENGINE TEST

Lower number = less wear

¹Based on independent testing of AMSOIL Signatur e Series 0W-20, in ASTM D6891 as required by the API SN specification.

Extends Drains: Protection Guaranteed

AMSOIL Signature Series Synthetic?Engine?Oil provides reserve protection, allowing you to go longer between oil changes if you choose ? up to 25,000 miles, 700 hours of operation or one year, whichever comes first*. Our unique synthetic formulation and long-drain additive system are inherently stable to resist oxidation and neutralise acids over longer periods. Signature Series is designed to deliver outstanding engine protection, cleanliness and performance over extended drain intervals ? guaranteed. It provides peace of mind so you can fit oil changes into your schedule.

¹?Based on independent testing of AMSOIL Signature Series 5w-30?engine?oil, in the LSPI engine test as required for the GM dexos 1^??Gen 2 specification.

²?Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.

³?vs. AMSOIL OE Engine?Oil

⁴?Based on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil screen plugging as required by the API SN specification.

^*?All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

Preserves Horsepower

The extreme durability of Signature Series Engine?Oil ensures your engine runs stronger, for longer. We installed Signature Series 5W-30 Synthetic?Engine?Oil in a Ford* F-150 with a new 3.5L Ecoboost engine to test its ability to protect turbocharged direct-injection (TDGI) engines from torque and horsepower loss during extended drain intervals up to 25,000 miles. Power sweeps were done at the beginning and end of the test to evaluate horsepower and torque retention. As the graph shows, Signature Series helped maintain engine performance throughout the 100,000 mile test.

Limits Oil Consumption

Signature Series has a uniform molecular structure that limits evaporation and keeps it where it’s needed most ? protecting your engine. Volatility (burn-off) occurs when oil gets hot, causing lighter molecules to burn off or evaporate. This leads to oil thickening, additive imbalance, higher emissions and oil consumption. The NOACK Volatility test is the industry standard for evaluating?Engine?oil high temperature evaporation. It measures the percentage of burn-off after a?Engine?oil is placed under constant airflow at 482?F for 1 hour. A lower number indicates a better resistance to evaporation. Signature Series falls far below the API limit for volatility, reducing the need for frequent oil top-offs and limiting vehicle emissions.

Easier Cold-Starts

Signature Series Synthetic?Engine?Oil does not contain paraffins (wax) and stays fluid in temperatures of -58?F and lower. Extreme cold causes other?engine?oils to thicken, starving vital moving parts of lubrication, accelerating wear and even preventing vehicles from starting. Signature Series?provides 66 percent better cold-temperature performance?for easier starting, better fuel economy, improved oil flow (as seen below) and reduced wear.

Maintains Protective Viscosity

We formulated Signature Series with superior thermal durability that resists breakdown better than conventional and synthetic?engine?oils. The Sequence IIIH Test uses the Chrysler 3.6L Pentastar engine to evaluate a?engine?oil’s ability to resist the damaging effects of heat. The test is conducted with oil temperatures of 304?F, 100?F hotter than normal operation, to accelerate oil thickening and deposits. Despite the extreme conditions, Signature Series kept pistons clean and held thickening to only 6 percent, a minimal amount compared to the proposed specification limit of 150 percent.¹?This stay-in-grade performance helps maintain maximum power and fuel economy while also ensuring advanced technologies like variable valve timing (VVT) operate as designed throughout the entire drain interval.

Additional information

Shipping Weight	3.8 kg
Shipping Dimensions	28 × 17 × 12 cm
Brand	Amsoil
Size	3.78L
Viscosity	5w-30
Model	Mk1 (89-98), Mk2 (98-05), Mk3 (05-15), Mk4 (15-24)

Warranty information

Warranties cover defects in materials and workmanship only. Warranty is for replacement of a similar product, repair of the original product or refund of the purchase value only and excludes all labour and incurred charges including towing, fitting, inconvenience, and purchases of other manufacturer's products. The warranty is good for the period stated in the additional info tab from the date of purchase. Mileage warranties are for road use only and proof of mileage is required. Products must be installed by an independent experienced professional mechanic and the suspected defect must be present at the outset. The warranty does not cover damage caused by incorrect installation, failure to comply with the maintenance requirements of the vehicle, processing or otherwise changing the product, ordinary wear and tear, or any other external influences. Warranties are invalid if the product is used for racing, rallying, drifting, track days or any other form of motorsport or competition. Please refer to the manufacturer's own warranty documentation for more information.

Making a warranty claim

Proof of purchase receipt showing the date of purchase, proof of mileage at installation, proof of current mileage and invoice of the work undertaken by an independent experienced professional mechanic must be supplied along with the returned products for a warranty claim to be considered. If your vehicle needs to be used whilst your warranty claim is considered replacement parts from the same manufacturer should be purchased through BOFI Racing. In the event of a successful warranty claim, we will refund the card that was originally used to purchase the replacement parts, in full or in part depending on the nature of the claim. BOFI Racing reserves the right to make full or partial compensation at its sole discretion depending on the condition and mileage use of the returned suspect parts. For example, if you have used the part for several thousand miles before a defect is noticed, only partial compensation may be offered.