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Originally Posted By: Shannow Originally Posted By: WANG Some folks on BITOG would say that because of CAFE, your engine won't be safe with whatever may be listed in your owner's manual. I know, I know, absolutely could not help it, Shannow!

Some folks on BITOG would say that because of CAFE, your engine won't be safe with whatever may be listed in your owner's manual. However, I'd use the top-shelf Pennzoil offering, but surely top-shelf Kendall, or Castrol, or Mobil products or any other premium Dexos 1 offerings would be just as...

Originally Posted By: OVERKILL Originally Posted By: WANG The Track Pack and Boss 302 are presumably geared toward track days. It makes sense for the owner's manual to specify oil suitable for that application. But they ONLY specify 5w-50. They do not recommend 5w-20 (like what is spec'd for...

The GT500 has a supercharged engine with significantly greater output than the Track Pack or the Boss 302 , it makes sense that the EPA estimate would be different. The Ford GT, again, is a different model altogether. It makes sense that it would have different lube oil recommendations and EPA...

We do know the OP's cars. None of them are 15 year old Subarus. Citing a Subaru manual is nearly as relevent as me citing a Perkins industrial engine manual. Different equipment, different requirements. I would prefer to, in the future, be known as "MR. IAW Manufacturer Recommendations" rather...

Originally Posted By: OVERKILL Originally Posted By: WANG If other oil grades were better for protection, I really cannot fathom why the manufacturers wouldn't include them as permissible in the owner's manuals. They used to, and still do in other countries. My understanding of the CAFE...

Originally Posted By: gfh77665 Originally Posted By: WANG I don't follow the CAFE conspiracy theory that our engines are being short changed on lube oil protection for the sake of CAFE. ... This is a significant service life. The OP should be aware some manufactures themselves advise that the...

Originally Posted By: Pontual Anh? liquid head exchangers ... what? Most cars don't have it. Look at average old subaru service manual ... easily found online 1996-2004. And they have oil coolers and heat exchangers. 5w30 "not recommended for sustained high speed driving" I don't count...

I'm now thinking that a blend of old school maintenance combined with modern techniques and products will be the way ahead. I'll use a normal cleaning and spray lube regimen for week to week, and just supplement that by removing the chain and doing a very deliberate clean and gear oil bath...

Originally Posted By: Pontual For some cars (like 4 cylinders 2.0 liters or less, small sump) 75+ mph or 3,500+ rpms, for long time (1,5+ hours) is sustaned high speed. I wouldn't do it in a 20 weight oil. The question in that case is: what are the oil temperatures at "sustained high speed?"...

The lubricity dosers came about when Cummins began providing the powerplants for MRAPs for the US military. Cummins would not warranty the engines to be fueled with JP8 unless these dosers were used. I wonder what the "dope" is that they are administering? The metering is a good question...

I would be very surprised if there was more than a negligible difference in oil temperatures from season to season in that duty cycle. It would be interesting to know what, if any, difference there may be. I believe that if there was a need for higher vicisity in higher ambients, the owner's...

Nope. Every once in a while, you can find a subject that will have you swear that you can't find the answer to anything on the internet. More times than not, when I was in that position, the subject at hand was fuel.

https://www.cumminsfiltration.com/html/en/products/fuel/additives/lub_doser_systems.html There's the easy answer to using JP8 where it was not originally intended

I've seen that Dupont stuff around, and saw a favorable write up in MCN about it. It has to be somewhere in town. My experience with Maxima Chain Wax was not nearly as favorable as yours. Edit: Amazon has it of course

Since 1879, so you know it's good... I'm generally a SOPUS guy, so I would use something that says Pennzoil on it. Then again, the last oil I dumped in my Ford was vanilla M1 5w20. Surely any of those (even the Wolf's Head, actually) would be awesome.

Originally Posted By: Robenstein Non O Ring chains are really yesterday's technology. They allow for intrusion of abrasives into the links and will wear very quickly if exposed to dusty or dirty environments. Other than cost, their only real benefit is that they suck less power. However, the...

What are some preferred products and procedures for looking after non O-ring drive chains? Any that are garbage and best avoided? Discuss.

Originally Posted By: Lorenzo Originally Posted By: ZGRider There is not a finer, more expensive basestock oil available on the retail market today. I challenge anyone to show me a synthetic oil on the market with a better advertised basestock than Motul 300V. I totally agree! If you don't...

The cars of today are AWESOME! It's one thing to fondly recall cars from one's past, even with the old "rose tinted glasses" in full effect, but to declare those cars as superior in function to their counterparts today is silly. Seriously.