Whats the best Oil to run in This Car

Well I worked at a steel mill that made oilwell pipe for close to 10 years, and our pipe had to meet the API standards, (Americian Petrolium Institude), and I found out that one is supposed to look for the "API Certified" logo on the oil we use. I still kinda feel a person should stick with the brand thats always been used if possible, probally dont make a difference, but I kinda like to do it cause my Dad advised it, however, back in his day, componies WERE indivuadly owned, now I think there's about 2 or 3?

Ya it was a BP station where I got that gas in Iowa! and that additive was Invigorate! Its weird, BP down here, is all the old Amaco which was the old Standard Oil, which I worked at Standard in the 70's as a kid pumping gas, and we were told back then that Standard was pure Americian products. Oddly, I heard that "BP" stands for "Brittish Petroelum"

I generally run Phillips 66, but now I notice, at least here, that Conoco now owns Phillips, because the Conoco stations say "Conoco/Phillips" on them. In fact, in our small town we have a Phillips 66 directly across from a Conoco/Phillips now.

I've heard what you mentioned about the winter/summer gas being different, in fact, my one friend told me that gas expands and contracts, he claims we get cheated in summer because the gas "shrinks" in winter?? or something to that effect.

My nephew was a mecanic, he's deceaced now, but he used to tell me to NEVER fill up at a station if I seen a truck filling up their tanks,as he said it stirred up all the settlements in their tanks. Which seems to make sense.

Have a great day, Jack

Just thought I'd let you know, I went with Havoline oil, same stuff I've been using for Years, and it seems fine. I have put close to 2000 miles on it so far, and it still is full, and still looks clean as a whistle! That "Northland" oil they had in it, must be like Penzoil, looks dirty going in new. My Dad always said "if ya buy a used car, use the same oil they always used" well, nowadays, people don't know what kind they used. My Dad always used Trop Artic back then, but it's getting hard to find around here anymore. One thing, I use Havoline 5-30 in my Truck, and the wife's Cavilier, BUT the Cadillac demands 10-30. I stuck with the Havoline anyway. I sure love my Caddy, but I'm thinking, I need to sell one of my vehicles. I bought my truck Brand New in 93, it's a 94 model year though, I ordered it from the factory. Pretty "plain jane" called a Chevy "Work Truck" but it's been a dang good truck! However, I'm a BIG guy with 3 back surgeries, and the Caddy is very kind on my back, unlike my truck or that dang Cavilier of my wife's. That thing beats me to death, plus I have to bend my head to sit in it! (I'm 6' 3" tall) Heck, the Caddy comes very close to getting as good of gas milage as the '02 Caviler, but she won't part with "her car". Oh well, thanks for your help, it was nice meeting you! Maybe someday, I'll come into some money, and be able to get a Classic Caddy, like a 58 thru 66 or so. ( I dig the tailfins, so 59 thru 64 would be great!) I remember My stepDad bought a 1960 Fleetwood 4dr. LOADED for 75 bucks, around 1971 or so, drove it like 5 years, and sold it for 125 bucks. Ahh the good ole days. Would be worth a fortune today probally. Thanks again, Jack

I love my Caddy too! Best "riding" car I've ever owned. My pride and joy though, was my 1978 Firebird Formula, which I bought brand new in 1978, for the grand total of $7525.00 I sure with I'd have kept her, AND the 1971 Mustang I traded in on her. Here's a pic.

Oh the Firebird got about 18mpg, BUT that was back in 1978 when gas was like between 50 and 85 cents per gallon.
I sold the bird in 1988, it had rusted out so bad, T tops leaked from day 1 etc, but I had alot of fun with the car. Still wish I'd have kept it. Of coarse, Ive always been poor, all my dough as a kid went into the car.