Mixing Full Synthetic Motor Oils

[endzone_truck]

I have rarely mixed brands, so other than residual oil in the engine I nearly always ran a full system. However there were a few times where I had to add another oil than the system had in it. Never had a problem.

Thanks Bill

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[Eighthtry]

Thank you for the good information.

Live life and not make the same mistake again. To be true to myself, I will say that I sort of recall thinking it said "Highway Mileage" and did not read the label correctly.

I understand the current predicament is entirely my fault and the there really is not such thing as "highway mileage" motor oil.

I have learned from my error. Sorry for any inconvenience caused.

No inconvenience caused at all. It is entertaining reading these threads and the conversation that they generate. Our vehicles are very personal to most on this thread. I gave up years ago sweating the small stuff. I have made too many needless modifications on cars over the decades that made no sense whatsoever.

My favorite??????? I bought a new 1982 Buick LeSabre. Nice car. Fully equipped. Drove great on the highway, which is where I spent the majority of my time. So I had the bright idea to replace the factory fuel tank with a 50 gallon tank. How can that go wrong? First, it was easy to install, took it to the gas station and filled it up. Remember that tank basically sat behind the rear axle. I was nearly scraping the bumper as I drove it home.

So, no problem. I will put a set of air shocks on it. Gabriel HiJackers to be precise. No problem. Got them on there and aired them up. It was perfect until I ran out of gas. By then the car looked like it was 6" up in the rear.

So, no problem. I will buy me a control valve I can operate from the driver's seat, which of course included a compressor.

So, the moral of the story is it that never worked properly. I had thrown the old tank and shocks away.

I also replaced the catalytic convertor with a "test pipe", thinking I will pick up a bunch of power. Umm, wrong. Plus I threw the converter away when, in fact, I needed it to pass state inspection.

I quickly sold that car at a nice loss and never messed with my company cars again. I probably have a dozen stories of me messing with others however. To no avail. Among my favorites are the K&N air filters that add horsepower. I bought into that one too. It probably did increase horsepower because it had less restriction, which means it had more porous air filters, which means that larger dirt particles were getting in, which means that the engine and dirt were compounding its internals and wearing them out. Duh. And guess what? I never felt the increase in hp. It was probably there but inconsequential in application. A great idea that gained me nothing.

Finally, my all time best was my 1990 Taurus SHO. An amazing car and the ultimate sleeper. I did every modification I could to produce power, and improved the modifications Yamaha made to the bare block Ford sent them. I probably bumped hp and torque about 50%. I had a Yamaha engine expert helping me. It took three tries to get a clutch that would hold. Finally custom made one, and the price hurt my feelings. I upgraded the brakes as well. Texas Motor Speedway had an internal road course that they configured to dump onto the oval. The program was 2 hours max, 30 minutes at a time. That car handled amazingly well. It was almost like it was rear wheel drive instead of front wheel drive. I had some heating problems initially and finally had the bright idea that racing fuel would help. Being a race course they had it there. So I filled up, the engine cooled down, and it ran like a scalded cat. I destroyed the brakes. I destroyed the tires. But.......the modifications worked. I tracked it with about 270,000 miles on it. Ended up putting 320,000 miles on that car. I finally sold it to one of the gentlemen that helped me put it together. He put it on the track full time and loved it because he was outrunning the BMW's. And yep, my modifications worked and I could feel it. It probably cost me $10,000 to do it. The car only cost $42,000.

My lesson? Speed costs money. I only used it on the track or passing, with an occasional high speed run across the one way bridge across the lake. What was I thinking?

Now I do not mess with mechanicals at all. Just things like bed covers, wheels, pinstriping, phone mounts, etc. Easy stuff. Costs nothing. And they always work. Maybe some challenges with the phone mounts.

I do run a high grade synthetic, Amsoil and their filters. That is why I am getting the hard miles for instance, on that Taurus. Never touched the engine internals except for cams. It used no oil between changes. That is what sold me on Amsoil. I thoroughly tested it in many ways.

But mix it. It will have no, as in zero, consequences down the road. Amsoil Signature is way expensive, but it is what I ran in that Taurus for 320,000 tough miles. I just switched to Pennzoil Platinum because I no longer put the miles on a car that I once did. My 21 F150, 23 GMC Yukon XL Denali, 24 GMC Terrain all call for 0/20. I run 0/30. It gets hot in Dallas.

 

[endzone_truck]

No inconvenience caused at all. It is entertaining reading these threads and the conversation that they generate. Our vehicles are very personal to most on this thread. I gave up years ago sweating the small stuff. I have made too many needless modifications on cars over the decades that made no sense whatsoever.

My favorite??????? I bought a new 1982 Buick LeSabre. Nice car. Fully equipped. Drove great on the highway, which is where I spent the majority of my time. So I had the bright idea to replace the factory fuel tank with a 50 gallon tank. How can that go wrong? First, it was easy to install, took it to the gas station and filled it up. Remember that tank basically sat behind the rear axle. I was nearly scraping the bumper as I drove it home.

So, no problem. I will put a set of air shocks on it. Gabriel HiJackers to be precise. No problem. Got them on there and aired them up. It was perfect until I ran out of gas. By then the car looked like it was 6" up in the rear.

So, no problem. I will buy me a control valve I can operate from the driver's seat, which of course included a compressor.

So, the moral of the story is it that never worked properly. I had thrown the old tank and shocks away.

I also replaced the catalytic convertor with a "test pipe", thinking I will pick up a bunch of power. Umm, wrong. Plus I threw the converter away when, in fact, I needed it to pass state inspection.

I quickly sold that car at a nice loss and never messed with my company cars again. I probably have a dozen stories of me messing with others however. To no avail. Among my favorites are the K&N air filters that add horsepower. I bought into that one too. It probably did increase horsepower because it had less restriction, which means it had more porous air filters, which means that larger dirt particles were getting in, which means that the engine and dirt were compounding its internals and wearing them out. Duh. And guess what? I never felt the increase in hp. It was probably there but inconsequential in application. A great idea that gained me nothing.

Finally, my all time best was my 1990 Taurus SHO. An amazing car and the ultimate sleeper. I did every modification I could to produce power, and improved the modifications Yamaha made to the bare block Ford sent them. I probably bumped hp and torque about 50%. I had a Yamaha engine expert helping me. It took three tries to get a clutch that would hold. Finally custom made one, and the price hurt my feelings. I upgraded the brakes as well. Texas Motor Speedway had an internal road course that they configured to dump onto the oval. The program was 2 hours max, 30 minutes at a time. That car handled amazingly well. It was almost like it was rear wheel drive instead of front wheel drive. I had some heating problems initially and finally had the bright idea that racing fuel would help. Being a race course they had it there. So I filled up, the engine cooled down, and it ran like a scalded cat. I destroyed the brakes. I destroyed the tires. But.......the modifications worked. I tracked it with about 270,000 miles on it. Ended up putting 320,000 miles on that car. I finally sold it to one of the gentlemen that helped me put it together. He put it on the track full time and loved it because he was outrunning the BMW's. And yep, my modifications worked and I could feel it. It probably cost me $10,000 to do it. The car only cost $42,000.

My lesson? Speed costs money. I only used it on the track or passing, with an occasional high speed run across the one way bridge across the lake. What was I thinking?

Now I do not mess with mechanicals at all. Just things like bed covers, wheels, pinstriping, phone mounts, etc. Easy stuff. Costs nothing. And they always work. Maybe some challenges with the phone mounts.

I do run a high grade synthetic, Amsoil and their filters. That is why I am getting the hard miles for instance, on that Taurus. Never touched the engine internals except for cams. It used no oil between changes. That is what sold me on Amsoil. I thoroughly tested it in many ways.

But mix it. It will have no, as in zero, consequences down the road. Amsoil Signature is way expensive, but it is what I ran in that Taurus for 320,000 tough miles. I just switched to Pennzoil Platinum because I no longer put the miles on a car that I once did. My 21 F150, 23 GMC Yukon XL Denali, 24 GMC Terrain all call for 0/20. I run 0/30. It gets hot in Dallas.

Mr. Boyd - what a wonderful story. Thanks for sharing.

Do you have any photos of the cars?

 

[Eighthtry]

Mr. Boyd - what a wonderful story. Thanks for sharing.

Do you have any photos of the cars?

Fortunately they are long gone, probably in some I-beams somewhere. I do have a photo of me on the Texas Motor Speedway with my SHO. They will probably find it and toss it when I die.

 

[endzone_truck]

Fortunately they are long gone, probably in some I-beams somewhere. I do have a photo of me on the Texas Motor Speedway with my SHO. They will probably find it and toss it when I die.

Or you could post it here and let your story shine through the ages.

For as Rabbi Hillel the Elder said " A single candle can light a thousand more without diminishing itself. "

 

[HammaMan]

For as Rabbi Hillel the Elder said " A single candle can light a thousand more without diminishing itself. "

I guess the rabbi didn't know that candles burn their wax as fuel - it can't both be lit and not diminishing itself.

 

[endzone_truck]

I guess the rabbi didn't know that candles burn their wax as fuel - it can't both be lit and not diminishing itself.

very nice boychik!

 

[Eighthtry]

Contrary to popular science, candles were the first form of life on earth. They evolved to burn themselves as fuel. They reproduced when the male candle melted his wax on the female candle over a worm hole.

Seriously. This is what is being taught at MIT, along with a few other things that are stupid. Like you can install a K&N kit and pick up 50 horsepower and shorter engine life.

 

[endzone_truck]

Contrary to popular science, candles were the first form of life on earth. They evolved to burn themselves as fuel. They reproduced when the male candle melted his wax on the female candle over a worm hole.

Seriously. This is what is being taught at MIT, along with a few other things that are stupid. Like you can install a K&N kit and pick up 50 horsepower and shorter engine life.

Add 92 octane and you're at a 110BHP boost. But that doesn't matter - the improvements in torque will be noticeable.

 

[Eighthtry]

If I am on a road trip now with any late model vehicle such as my 5.0 F150 and my 6.2 GMC Yukon they all get premium. It hurts my feeling to pay up two grades, but I am very pleased both manufacturers are giving me the option. It did not make any difference what grade I used in my 1928 Dodge I drove my senior year in high school.

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