Buy Mobil 1 103536-CASE 10W-40 High Mileage Motor Oil - 1 Quart Bottle

Customer Ratings:

Only the best oil will go into my car and this is one of them. Excellent durability in my car, a 400hp audi s4.

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Walking through my local Walmart today I could have gotten 10 quarts for this price. I wasn't even shopping for this, thats what made me the most upset. Guess I need to compare more instead of just trust the site.

Reviews of Red Line 42504 20W-50 Motorcycle Oil - 1 Quart Bottle

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I've always used Mobil 1 for my H-D Ultra Classic because it was recommended by a H-D dealership mechanic. He recommended using it for all three holes (oil, transmission & primary). I've had no complaints whatsoever with Mobil 1. I decided to tackle the latest fluid change myself. I did some research and decided to try the Red Line brand and I bought their area specific fluids; that is, Red Line 20W-50 Oil, Red Line V-Twin Primary Case Oil & Red Line V-Twin Transmission Oil. The only area where I noticed an immediate improvement was with the transmission remarkably smoother and quieter shifts. The primary nothing good or bad that I noticed. My Ultra has always had minor pinging under load uphill during hot weather. I thought it was something with California fuel but I always run high octane and everything is mapped. It wasn't a big deal, just annoying. I noticed that after using Red Line oil, the pinging (or what I thought was pinging) is completely gone. Maybe it has something to do with dispersing heat or controlling heat. I'm so happy. It costs more than Mobil 1 but to me it's worth it. It just seems right to me to use the three area specific oils. I'm sticking with Red Line.

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I just serviced my v twin with redline 20-50 motor oil. It seems to work as well as any & supposed to out preform. We will have to wait & see about that. I may update later.

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I love red line

Always a good product fast and easy good shipping no problems I'll buy it again Awesome

Honest reviews on Red Line 42504 20W-50 Motorcycle Oil - 1 Quart Bottle

I have been using Redline products for many years. This is a high quality synthetic oil that helps reduce oil temperature. Their other products are also top shelf.