elwesso wrote:I saw a case of mobil 1 synthetic 15w40 (I think) for $26...... And it was MOBIL1, not just MOBIL......
PalmerWMD wrote:Around here.MOBIL 1 is usually between 4.40 and 4.99, except for my favorite MOBIL 1 the 0w-40 ( the only 40 weight MOBIL1) which is always 4.99 <if> you can find it.
Valvoline SynPower is always slightly less than MOBIL1 thgeir base oil is not quite as good but I like their detergent package.
Also ( for those who sue 30 weights) their 30 weight is slightly thick which is not a bad thing especially compared to MOBIL1 30's which tend to run thin.
My favorite SYnP{ower is the 5w-40 which meets some impressive specs ( as doe sthe MOBIL1) but alas it's hard to find.
If I was in Cali I would likely run thicker oils than 30 weights.
Maybe 15w-50 or at least a 40 weight , in summer and in summer maybe 5w-40 SynPower, 5w-40 Kendall GT1 Synthetic or MOBIL1 0w-40.
Fred...![]()
In both of my Seattle Q45s (1995 & new to us 2000) I use 10-30W Mobil 1. Sometimes drive in heat up to 100º F (Oregon summer) with no ill effects in 1995 Q45. Both were Envirolution flushed before converting to M1.brucepelletier wrote:I've always used 10W-30 in my 90 Q (117,000 miles), the last few years using Mobil 1. At Costco the other day I saw the following Mobil 1 for sale, all at $23.99 (plus tax) for 6 quarts:
0W-40 / European Car Formula5W-30 / New Car Formula10W-30 / Multi Vehicle Formula15W-50 / Performance Driving Formula
I live in San Francisco, so no freezing weather, and change oil every 3 months/3,750 miles.
Which oil should I be using?