Recent content by 69P

I agree. Mileage on a 1000mile trip was some of the best and relatively consistent with full load, different drivers, and serious hills (34.5-36.5mpg over 3 tanks).

You're probably right DGXR. Im sure the oil would still be acceptable. However, as mentioned in an earlier post I get nervous when specs change especially when getting thinner. Im sure thats to meet some new emissions regulation. Just because engines are design to last long now with new thinner...

Either way of stating it is correct.

I put the 0w40 Fs in this afternoon and I'm happy with the results. Its odd because it seems like the engine revs smoother despite the thicker oil. It also seemed like I was accelerating more on light throttle after TC lock up. This is particularly noticeable as TC lock up is around 36mph and I...

Fair enough and thanks for the responses. I will likely look at pricing on either ESP 0w30/5w30 or use the 0w40 FS that I have. I've been burned by "backwards compatible" oils resulting in flat tappet cam wear and engine failure. Now I always question when changes in formulations pop up that...

Thanks all for the replies and suggestions. Im on the fence of using the 0w40 fs and going for the esp5w30. Are there no problems, or downsides, with using the esp oils since they are formulated more towards cars with emissions devices my car does not have?

Fair point on interpretation of significant, but still subjective when only have 13psi to work with in a high milage vehicle. The changes in viscosities appear to be 10-20% (check out 10w30hm). You make your own assessment. I think thats big. I typically stay within grade so changing to a 40...

It appears the viscosity of many of Mobil 1s oils have changed based on the provided viscosities on their website. For example high milage 5w30 used to be 11.7-11.9cp at 100C, but is now showing as 10.1cp. I reached out for confirmation from Mobil 1 since this isn't an insignificant change, but...

Originally Posted By: SteveSRT8 Originally Posted By: 901Memphis If a 30 grade gives you enough oil pressure at hot idle and hot load, then overly thick oils do nothing but increase bypass events. This is the answer. OP needs oil temperature and oil pressure together to make a real reasoned...

Originally Posted By: chainblu I think you guys are wasting your time on this one. Even though he asked for advice, he's just waiting for someone to tell him what he wants to hear. Thats not true. I have just not heard much logic as to why choose certain oils. A few of you have been great, but...

Originally Posted By: Merkava_4 Originally Posted By: 69P That old timer would be smart to recommend a 10W40 oil for it. At least he wouldnt have recommended a 0W oil for it, that wouldnt be a good idea. I would like to hear what he has to say. If I know him like I think I do, he'd probably...

Originally Posted By: 901Memphis Originally Posted By: Merkava_4 Originally Posted By: 69P Why choose 5w over 10w ? Also im hesitant to run Quaker State oil. Ive always heard about quaker state and a notorious grey buildup. Have you guys heard or experienced this? If you want, I can give you...

Originally Posted By: ThirdeYe I'd use Rotella T6 Synthetic 5W-40, personally. Nice car! Can we see some pics? Maybe I will if I can motivate myself to upload a picture to a site LOL

As far spring pressures go, Im pretty sure stock pontiac springs have an average load of ~275-300#, and seat pressure is around 100#. This car is my hobby car, and it gets driven tops once a week. More like every 2-3 weeks. Im also concerned with using a synthetic oil in an old motor. I have...

Why choose 5w over 10w ? Also im hesitant to run Quaker State oil. Ive always heard about quaker state and a notorious grey buildup. Have you guys heard or experienced this?