Red Line 11304 SAE 10W30 Fully Synthetic Motor Oil - 1 Quart

First and foremost, I want to highlight the exceptional experience I’ve consistently had with the seller, R/A Hoerr Incorporated. Over the years, I’ve purchased numerous automotive products online, and this company stands out as one of the best I’ve ever dealt with—especially when it comes to Red Line products. Their shipments are always prompt, packaging is professional and secure, and everything arrives in excellent condition, without exception. Their attention to customer service and reliability has made them a go-to source for my automotive needs.Now, turning to the product itself—Red Line Oil—I’ve been using it for well over 30 years and can say without hesitation that it is among the highest quality motor oils available. I’ve trusted it in a wide range of applications, from daily drivers to high-performance drag cars, and it has never failed to deliver outstanding results. The consistency and performance of Red Line products have earned my complete confidence over decades of use.My trust in Red Line was firmly established nearly three decades ago during an engine rebuild on a vehicle that had logged over 260,000 miles. What I discovered during that teardown left a lasting impression: the cylinder walls still showed clear and well-defined hone marks, the cam lobes were in near-pristine condition, and both the bottom-end bearings and journals displayed minimal wear. It was a powerful testament to the product’s protective capabilities under long-term stress.Since that experience, Red Line has been the only engine oil I use in any of my vehicles. I also make it a point to follow proper maintenance intervals and always pair the oil with a high-quality filter. When these best practices are combined with a premium lubricant like Red Line, the longevity and reliability of your engine are virtually guaranteed.In short, whether you’re looking for peace of mind in your daily commute or maximum protection for your high-performance build, Red Line Oil remains a top-tier choice—and R/A Hoerr Incorporated is the best place to get it.

I have a 91 miata and have switch around from different brands because didn't like the idea of having to order oil online, but man..... talk about night and day difference.. on cold starts I use to get a tick for the first second while the engine builds oil pressure, but not anymore... starts up nice and smooth everytime. I've put about 2k miles on the oil so far, and not that I had sluge in my engine before but I looked in my oil cap the other day and the little bit of build up that made its way there over the last 30 years is not all gone and clean. Really amazed by the quality and the fact it's a american made oil. Go on YouTube and look up project farm he has a Playlist where he compares oils, and redline didn't win, but man did it come close, it should have won in my opinion. Also owning a miata which revs pretty high and cruzes at 4k on the highway it seems to handle the abuse without foaming. And on the forms all the miata guys rave about how great this oil is, and I'm a believer now. Only oil that will ever go in my miata for the rest of its life.

I get good results with redline; but in the opinion of atleast one, respected by many, mechanic on YouTube - he says it is likely that I would have also gotten equivalent results with another decent but not so expensive name brand oil. Therefore in the future, I am going to compromise and use one half redline and one half, let’s say Amazon oil or Walmart oil - or whatever oil. Read somewhere that it is ok to mix Esters with nonesters. I service four family vehicles. That’s a lot of periodic Fluid changing. Therefore I am taking the advice of aforementioned mechanic. So I am cutting the redline with a more affordable yet quality brand oil. I expect good results with specified oil changes. I use redline D4 atf - that I will continue to use straight up.In addition, one saves only .20 cents per quart of redline by purchasing the gallon jug over the 12qt case. Atleast as of today 12/27/19.

This oil is the best of the best. I am a retired mechanic of 34 years and I just about have tried them all. This oil has to be one of the best I have ever used. I still change my own oil and filters and I still use this oil. I have used it for more then 20 plus years and I have always had the same good results. It runs longer between oil changes ,up to 12,000 miles or more, with just a oil filter change in between.I have broken down motors and found very minimal wear even after 150,000 miles. Rings and bearing with little wear and cylinder walls with little or no tapper, camshafts and lifters also with very little wear for that kind of milage. The price may scare you a little, but you get to go longer between oil changes. I drive very little now days only about 2,500 miles a year if I am lucky. I still only change my oil once a year with an oil filter change every 6 months. I use this oil in a 1997 Toyota T100 4X4 SR5 and a 1998 Honda civic. I bought both vehicles new, and they both have over 85,000 miles on them and are doing great. I also use the redline transmission oil for both vehicles along with the transfer case and rear end oils for the 4x4. You just can not beat this product at any price..

If you are familiar with Red Line oils, no explanation is needed. If not, read on.Simply, this is probably the best automotive motor oil you can put your hands on. Rivaled only, maybe, by Amsoil.It's not cheap, and generally the major brands may seem like a better bargain --- but stuck in that baking summer traffic jam, or extended high speed vacation interstate run, or that 10 below zero morning when you turn the ignition key, or when you've been too busy for that oil change that was due a month ago . . . . You'll feel much better knowing you've got the best motor oil in the world in your engine, which remains well protected.After years of experience, including a couple of specific failed engine experiences via buying "bargain oil" (I can name a couple of well known brands), I now use nothing else but Red Line in my car and motorcycle.