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Have some M1 0w-20 left, and some M1 0w-40. Thinking of mixing 50/50 to use up in a 2014 Chevy Volt that specs dexos 5W-30. I’ve looked at the VOAs. The 0w-40 uses a lot more calcium and a lot less magnesium than the other two. Thoughts? If I’m doing the math right, my viscosity should come out...

Hey all. A few years ago, I inherited my uncle's 1978 Oldsmobile Delta 88 Royale with 5.7L gas engine and TH-350 three speed auto. It had sat in a dry garage for about 20 years. Maybe started a couple times at most. The first time I drove it, I was very gentle with throttle. The test drive...

Have a 1978 Delta 88 that’s been in the family since new. Due to uncle passing away, it’s mine now. A true garage queen with no rust. 110,000 miles. 1978 could have had a Chevy or Olds 350, this one has the Olds 5.7 gas, not diesel. Does anyone know if this is a flat tappet cam engine? Do I...

Morning everyone. I've owned a few GM 60* V6 equipped cars over the years, mostly 3100s, and aside from the intake gaskets failing they have all worn beautifully, extremely low by UOA standards. This 3500 in my 2007 Buick Rendezvous has always run a little high. I know there is a huge gap...

Good morning! I have a 2007 Buick Rendezvous with the 3.5L LX9 engine. Been toying with the idea of trying a 0W-20 in it. Why? Just because. I know it isn't necessary due to climate, I know it's not spec'd that way from factory, and I know it's not going to benefit gas mileage much. I'm...

Vehicle is a 2007 Buick Rendezvous with 3.5L and 4T65E. The crossover has never trailered and generally been driven in an average manner (Ohio temps, no hard acceleration, mix of city/highway miles, etc). I did the first transmission pan drop and filter change at 50,000 miles. I used a real...

I am trying to search for UOAs for my car.... using keywords like LS2 and GTO. Not getting any results using the past 10 years as timeline. Did the minimum number of characters per search get revised or something? Can we get it revised to 3 character minimum, if that indeed is the problem? I...

I have a Tecumseh powered mower that wasn't needed for a few years and sat. Pulled it out, cleaned it up, and eventually got it started, ran poor so I removed the lower bowl on the carb and cleaned things out and it seemed to run well. Checked the oil and it looked like it was diluting with...

I've had this happen to me twice now over the past decade, on two different cars. Thought I'd share and see if anyone has a fix or can at least explain what is happening. There is a squeaking sound coming from one wheel, from the disc brake when I am not applying the brake. Touching the brake...

2007 Buick Rendezvous, 3.5L V6. Owned since brand new. 65,000 miles roughly. Over that period I've usually used the ACDelco PF47, but have used Bosch and PureOne and Fram TG once each. Never had a problem. Picked up a Purolator Classic on the promotion recently, and put it on. About once a...

If all I want to do is find out which oil would be thinnest on the coldest day of the year, is my only option to use the Pour Point and assume that the oil with the lowest Pour Point will be thinnest at winter temps (say around 0*F) ? I want to compare readily-available (non boutique) 0W-x oils...

Hmmm, yes copper went down, but not as much as I had hoped. Maybe Synpower 5W-30 and this engine don't get along.

I've done some searching here, but didn't find many UOA for the LS2 engine. (Can the search engine be fixed so a 3 character search will work??) I doubt there's many Goat (GTO) owners here -- what about you Corvette guys. I have a 2005 Pontiac GTO. Picked it up a few months ago with only 2,300...

This is my 1999 Ford Contour SVT with 2.5L Duratec V6. One dose of SeaFoam through a vacuum intake during this OCI, and almost a year on calendar. Just over 100,000 miles on the car, owned it since new, and it's seen M1 for about the first 70k miles and pretty much GC since then. I drive fairly...

This is my second UOA after having done the intake gaskets with Fel Pro problem solvers last summer. The reason I only ran the oil for 1600 miles was because I found a buyer for this, it's a convertible and just doesn't make sense for our family any more. I wanted to be sure the buyers...

99 SVT Contour. As I'm parking and turning the steering wheel I hear a whine. It's not coming from the pump, definitely from the rack. Somedays it seems to go away, but there's no rhyme or reason to it that I can tell. Could be quiet or whiny when cold, quiet or whiny when hot. I don't hear it...

I have a small 2 cycle edger, by Weed Eater. I believe it's 22 cc. I bought it a few years ago, and it handles my edging needs. I have a small yard and only edge a couple times a year. There is one peculiarity though. It runs best only after 10 minutes of running or so. I start it per the...

Didn't know where to post this. It isn't really antifreeze, but it isn't really about detailing nor is it a wax. My question is for those who live in the northern States or Canada. Has anyone compared Rain-X DeIcer formula (clear bottle, round shape, pinky orange in color) against Prestone...

1995 Cutlass Supreme Convertible 3.1 V6 153k miles on car 1535 miles on oil Last UOA showed sodium on the rise. Diagnosed by Blackstone and BITOG as an intake leak. I took my time and did the repair myself, an hour here and there over a few weeks. Used the Fel Pro problem solver gaskets. As...

Not much info on Kerosene as an additive here at BITOG. I just bought some to have on hand in case of a power outage this winter to power the kerosene heater. Since I plan on only using it in an emergency, come spring I will probably have Kerosene left over. I read one post claiming it was the...