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 Motor Oil by Red Line Oil

Product ID: 570657517

Details

Brand
Red Line
Liquid volume
1 Gallons
Package information
Bottle
UPC
083522116053
Vehicle service type
Motorcycle

⏳Extended drain intervals with high detergency

🔥High-temp stability & oxidation resistance

⚙️Full-synthetic ester/PAO formula

Description

🔥 Drive harder, last longer — Red Line 11605 keeps your engine in the fast lane!

PROVEN TRACK RECORD - Trusted by Shelby GT500, Ford GT, Focus RS & Range Rover enthusiasts
LEGACY OF EXCELLENCE - Since 1979, Red Line delivers uncompromising performance and protection
RACE READY SYNTHETIC POWER - Ester/PAO blend engineered for performance cars, trucks & marine engines
CLEANER ENGINE LONGER LIFE - High detergency formula extends oil change intervals and boosts fuel economy
UNMATCHED THERMAL STABILITY - Keeps lubrication strong under extreme heat for peak engine protection

Red Line 11605 Motor Oil is a premium full-synthetic ester/PAO formula designed for high-performance passenger cars, light trucks, and marine engines. It offers superior high-temperature stability, oxidation resistance, and high detergency for extended drain intervals and improved fuel economy. Popular among enthusiasts of Shelby GT500, Ford GT, and Focus RS, this oil ensures cleaner engines and enhanced power delivery, backed by Red Line’s legacy since 1979.

Specifications

ASIN	B004BORLQM
Automotive Fit Type	Vehicle Specific Fit
Brand Name	Red Line
Compatible with Vehicle Type	Motorcycle
Container Type	Bottle
Customer Reviews	4.9 4.9 out of 5 stars (68)
Global Trade Identification Number	00083522116053
Item Weight	3 Kilograms
Liquid Volume	1 Gallons
Manufacturer	Red Line
Manufacturer Part Number	11605
Model Number	11605
Number of Packs	1
Size	gallon
UPC	083522116053 083522116251
Viscosity Level	Medium to High

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TrustScore 4.5 | 7,300+ reviews

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3 weeks ago

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