Engine Oil

[Tarco]

Now I have searched in the past for info on this topic but no one has actually answered the question:

Mobile one now offers two grades of there product the 0-40W and the 15-50W both are branded as Mobil 1 but the 15-50W is marked High Performance.

Which is the one that will work and last better in a TVR V8 Chim than the other and Why?

Tarco

[zippy500]

If you do track days use motorsport grade, it can handle prolonged heat better and remains at a sensible viscosity. If you only do road driving, use Mobil 1.

[Bob C]

Everyone seems to have an opinion on oil. I use Mobil 1 0-50 because its recommended by TVR, but I do worry that it's too thin. You can get Mobil 1 5-50 on the continent but not in the UK anymore which is a pity. My view is that 15-50 is too thick.

[MajorClanger]

You might be interested in reading this:

http://ourworld.compuserve.com/homepages/Peter_Beech/TVR/MobilOil.htm

MC

[apache]

I know taking advice about oil on these pages can seem a bit risky so have a chat with some one who races or tunes the V8 motors like Steve Howard at Thames Valley Racing. My experience of Mobil 1 is that it was going past the rings and spattering all over the rear of the car and drinking a litre every 300/500 miles, I now use a 10/40 synthetic and it lasts up to 1500 miles a litre and doesn't splatter the rear

>> Edited by apache on Monday 18th February 19:29

[GreenV8S]

quote:My view is that 15-50 is too thick.

Too thick for what? You have to bear in mind that this engine was designed decades ago when low viscosity synthetic oils simply didn't exist. It's designed with huge clearances everywhere and you need a reasonably high viscosity to generate enough pressure to generate the right flow distribution. Thicker oil also drastically cuts the oil consumption as it doesn't leak past the rings and seals so quickly.

Cheers,
Peter Humphries (and a green V8S)

[trefor]

I think Steve used to use a Texaco branded Synthetic - might have changed by now. Anyway, since my last service there (6,000 miles ago, ahem, service time again) it's only used around 1 litre and the oil 'looks' quite clean (I know I can't tell it's protective properties from looking at it).

[apache]

yup, Texaco F3 synthetic 10/40 thats the stuff

[rthierry]

I am using Castrol Magnatec as recommended by David Batty. No problems in 5000 miles - and also significantly cheaper than Mobil 1.

But that's only my car !

[c j morgan]

use cooking oil that works in
tvrs
from safeways

>> Edited by c j morgan on Tuesday 19th February 18:35