Would this be great for a 335i N54 with heavy performance mods?

Absolutely, I run it in my Shelby GT350

Can i use it on a 2005 bmw 545i?

The 2005 545i uses 5w30 or 0w40 when in temperatures over 50 degrees F.

Is this good for an old/worn opel zafira b 1.9 cdti, or is it a bit too thick for the system?

I’m sorry I don’t know about your particular car however it went into my 2020 Shelby gt 350 easily, as it is the required viscosity. The oil was not thick like the old 20/50 weight oil it was actually easy to pour. The oil pressure typically runs over 100 lbs in the Shelby if that helps.

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Red Line 11605 SAE 5W50 Fully Synthetic Motor Oil - 1 Gallon

Product ID: 16105499

Details

Brand
Red Line
Liquid Volume
1 gallons
Package Information
Bottle
SAE J300 Viscosity Grade
5W-50
Vehicle Service Type
Car Truck

⏳Extended drain intervals

🔥High-temp stability

⚙️Ester/PAO synthetic formula

$228.35

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Description

🚗 Drive elite. Stay ahead with Red Line 5W50 synthetic power.

PROVEN TRACK RECORD - Trusted by Shelby GT500, Ford GT, and Range Rover enthusiasts worldwide
PRECISION POWER BOOST - Improves ring seal for enhanced horsepower and fuel economy ⚙️
NO COMPROMISE PERFORMANCE - Established since 1979, engineered for peak protection and power
UNRIVALED THERMAL DEFENSE - Keeps your engine cooler and cleaner under extreme heat 🔥
LONGER OIL LIFE LESS HASSLE - High detergency means extended drain intervals ⏳

Red Line 11605 SAE 5W50 is a fully synthetic ester/PAO motor oil designed for high-performance cars, trucks, and marine engines. It offers superior high-temperature stability, oxidation resistance, and detergency for extended oil life and improved fuel economy. Recommended for demanding applications like Shelby GT500 and Ford GT, this 1-gallon oil delivers proven protection and power since 1979.

Specifications

ASIN	B004BORLQM
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#67,838 in Automotive ( See Top 100 in Automotive ) #571 in Motor Oils
Brand Name	Red Line
Compatible with Vehicle Type	Car, Truck
Container Type	Bottle
Customer Reviews	4.9 4.9 out of 5 stars (77)
Global Trade Identification Number	00083522116053
Included Components	Per Item Description
Item Weight	3 kg
Liquid Volume	1 gallons
Manufacturer	Red Line
Manufacturer Part Number	11605
Manufacturer Warranty Description	30 Days
Model Number	11605
Number of Packs	1
Part Interchange Info	11605
SAE J300 Viscosity Grade	5W-50
Size	Gallon
UPC	083522116053 083522116251
Unit Count	128 Fluid Ounces
Viscosity Level	Medium to High

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$228.35

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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