Oil Preference

[USD03745]

Mine is a 1990 w/ L98 and approx. 116,000 miles. Runs like a top. Last oil change I put Mobil 1 in; no problems. However, I have heard good things about Valvoline's MaxLife for engines over 75K. It is a synthetic also.

Any thoughts/comments?

 

[CharlesBrown]

Mobile 1 is hard to beat. I believe this "high milage" stuff is nothing more than "product positioning" something like a "nite time" cold releif. How does your body know its nite time?

 

[G Winter]

I have been using Mobil 1 for more yrs than I can remember. I have had no internal engine problems since I started using it. They start easier in very cold weather and the oil holds it's viscosity when very hot. I recommend it every chance I get.
One summer I was in slow traffic with the air going (95 deg ).The engine temp got to about 250, even after shutting air off,before I could get out of the traffic. The oil pressure didn't drop at all .

Glenn

 

[Hib Halverson]

If you're using 10W30 Mobil 1, you've made a good choice.

CharlesBrown's comment about "high mileage" engine oils being "product positioning" is spot-on.

 

[jmhorn52]

I just bought my '88 and i have no idea what oil has been used in it..Whenever I bought a new car i always used Mobil1 would hurt this car it has 165K on it now and runs like a top,,Thanks